
                        Glock User's Manual

    This file is (C) Copyright 1995 by John Leveron.  Permission is
granted to distribute the file in any manner as long as the
following conditions are met:

1)  No fee is charged for the manual itself;
2)  Nothing is added to, removed from, or changed in the manual.

    Please respect the above conditions.  Comments, questions, and
suggestions may be sent to the author.  "How to reach the author" is
at the end of this manual.

                             Contents

*1.   Disclaimer
*2.   Introduction
*3.   Basic Firearm Safety Rules
*4.   Safety Features of the Glock
*5.   Technical Specifications
*6.   Ammunition Specifications for Glock Pistols
*7.   Field Stripping the Glock Pistol
*8.   Reassembling the Field Stripped Glock Pistol
*9.   Magazine Disassembly / Reassembly
*10.  Preventative Maintenance
*11.  Lubricating the Field Stripped Glock Pistol
*12.  Dry Firing the Glock Pistol
*13.  Function testing the Glock safeties
*14.  A word on different type of Glock Trigger pulls
*15.  A Word about Barrel types
*16.  Glocks Sights
*17.  Service Procedures and Trouble Shooting
*18.  Special Features of the Glock 17
*19.  The Glock 18 Select fire Machine Pistol
*20.  New Glock Models
*21.  Miscellaneous Glock facts
*22.  Conclusion and Addresses / Phone Numbers;
      How to contact the Author and Glock, Inc.
*23.  Special Thanks


*1.  Disclaimer

    Please read the entire manual before attempting any of the procedure 
listed in this manual.  Heed all of the Notes and Safety Cautions.

    This manual is intended to be supplemented by technical bulletins.  
Information and specifications contained within this manual may change 
without notification.  Contact the author or Glock (address and phone 
information is at the end of the file) if you have any questions about a 
Glock pistol, and they will gladly help you out.  Glock can also provide 
you with the closest Glock certified field representative.

    This manual does not contain the actual armorer specific information.  
The actual armorer's manual provides basic service and backup information 
for certified Glock Armorers, and is not intended for use by other 
personnel.  Armorer certification can only be granted by Glock after 
attending a Glock Armorer's School.

    This means if you are not a certified Glock Armorer, do not attempt 
any of the Armorers tasks.  Doing so can damage the pistol and cause 
possible serious bodily injury to the shooter or an observer.  Instead, if 
you have access to that data, use it only for observation of how the 
pistol works.  Please enjoy the background information and technical 
specifications that are listed in this file.

    This document was created from the Glock Armorer's manual (dated 
January, 1992), my own notes, and from discussions with Glock Factory 
personnel.  This information was current as of March 28, 1995.

    Neither Glock, the Glock Armorer who created this document, nor anyone 
who disseminates this document can be held responsible for any 
misinterpretation of the instructions in this manual that can lead to 
improper functioning of the pistol.  This electronic manual is not from 
Glock, Inc.  Glock does not warrant any of the information contained in 
this manual.

    For additional information and service guidelines contact Glock for 
your nearest Glock certified field representative.


*2.  Introduction

    All Glock pistols are a product of modern technology, incorporating 
many innovative design features which result in ease of operation, extreme 
reliability, simple function, reduced maintenance, durability and light 
weight.

    Mr. Glock was the first person to successfully produce a polymer 
handgun receiver and marry it to a strong, all steel slide and barrel.  In 
addition to new materials and manufacturing methods, the Glock pistol has 
an action which combines the best characteristics of the traditional 
double and single action pistols, creating what has become known as the 
"Safe Action" system.

    Safe, simple operation, reliability and accuracy were primary design 
criteria.  To achieve safety with simplicity, three independent safeties 
sequentially disengage as the pistol's trigger is pulled to its rear-most 
position.  These safeties automatically reset themselves once the shooter 
removes his finger from the trigger.  Glock pistols combine the safety and 
simplicity of revolver-like operation with a constant double action 
trigger pull, high magazine capacity, rapid recovery, and the reduced 
recoil of a modern, semi-automatic pistol.

    Maintenance of the Glock is extremely simple and straightforward.  A 
unique feature of the Glock pistol is that all parts generally are 
interchangeable within the same model - no hand fitting, filing or 
polishing is required or advised.

    The polymer frame provides several advantages.  It is lightweight,
rust proof, and it will not stick to flesh in cold weather.  The polymer
frame also reduces felt recoil by "bending" from the recoil of a round
being discharged.  The grip is narrower than would otherwise be possible
since the grips do not take up any space.

* The Exterior finish on Glock Pistols

    Most of the metal parts on the Glock pistol receive a finish called 
Tenifer.  This finish is applied to a depth of three thousandths of an 
inch.  The Tenifer finish is rated at 69 on the Rockwell hardness scale.  
About the only thing harder than Tenifer is a diamond or carbide.  The 
Tenifer finish on Glocks carbon steel slide resists corrosion much better 
than even stainless steel.

    If you somehow manage to cut through the Tenifer finish, Glock cannot 
"Re-Tenifer" your pistol.  It would be too brittle and the metal would be 
subject to cracking.

    The finish you see on the exterior of the slide on a new Glock pistol 
is not the Tenifer finish.  This is a parkerizing type finish applied over 
the Tenifer finish.  As the pistol is used and rubbed over a long period 
of time, this finish may wear off in spots.

    Glock can refinish this "parkerizing" type of finish if you ever use 
your Glock often enough and long enough to wear it partly off.  Contact 
Glock for details and prices.

(Ed. Note :  I have worn my Glock 21 of 5 years use next to my (often 
sweaty) skin.  I've never noticed any corrosion due to sweat or water, 
even on the small sections that have lost the dull parkerizing finish.  
These small areas appear to have a dull silver color).

Direction Note :  The terms right and left, front (muzzle) & rear, top and 
bottom, up and down, and forward and backward as used in this paper refer 
to the pistol when being held in shooting position as seen by the shooter.

*3.  Basic Firearm Safety Rules

1.  Always keep the firearm pointed in a safe direction.
2.  Handle all firearms as if they were loaded.
3.  The trigger finger stays out of the trigger guard until the firearm is 
on target and the decision to fire has been made.
4.  Make sure the firearm is in good working order and the barrel clear of 
obstructions.
5.  Always check your target, backstop, and the surrounding area before 
firing.
6.  Quality ear and eye protection should always be worn while shooting or 
observing.
7.  When storing a firearm, the firearm should be unloaded, secured in a 
safe storage case and out of the reach of children and untrained adults.
8.  Only use ammunition recommended by the firearm manufacturer and always 
check caliber and condition of ammunition before loading the firearm.
9.  Firearm transportation is regulated by Federal, State, and local laws.  
Always transport your firearm in a safe, unloaded condition and in 
accordance with applicable laws.
10. Certain medications, alcohol, and firearms do not mix.  Never allow 
anyone to use firearms when under the influence of drugs or alcohol.
11. The safe and rational use of a firearm relies on common sense and 
proper training of the user.  Follow safety rules and think before using a 
firearm.
12. Thoroughly read and understand the users manual that is supplied with 
your firearm.  Never use any firearm unless you completely understand its 
operation and safety features.


*4.  Safety Features of the Glock

    The Glock pistol has no conventional, externally-located safety lever.  
Therefore, make sure that the trigger is touched only when you intend to 
fire or when verified empty, in order to perform maintenance.

1.  Trigger Safety

    The trigger safety is incorporated into the trigger (part #26) in the 
form of a lever, and in the untouched state blocks the trigger from being 
moved backwards.

    To fire the pistol, both the trigger safety and the trigger must be 
depressed at the same time.

    If the trigger safety is not depressed, then the trigger will not move 
to the rear and the pistol will not fire.  This is designed to prevent the 
trigger from going to the rear when the pistol is dropped.

2.  Firing Pin Safety

    A spring-loaded pin (#9) projects into the firing pin cutout, and 
blocks it.  This safety is only released while the trigger is pulled.

3.  Safety Function of the Trigger Mechanism Housing
    (Drop Safety)

    The trigger bar is pushed onto the safety ramp by the firing pin.


    The safety devices 1, 2, and 3 above are designed to prevent the 
weapon from unintentional discharge, if dropped from up to 6.5 ft., 
exceeding NATO standards.

Special Warning:

    In case the trigger safety proves to be ineffective for any reason, 
Danger of an unintentional discharge exists.  The weapon is to be 
immediately unloaded and restricted from further use.  Make sure that your 
weapon is properly repaired and checked by Glock or a Certified Glock 
Armorer before using it again!

*5.  Technical Specifications

    Glock currently has pistols in four calibers for shooters in the 
United States.  They are the 9mm Parabellum, .40 S&W, 10mm, and the .45 
ACP.

        Glock 17 (9mm Full Size Pistol)
                         Metric           U.S.
Type of                     Safe Action
  Action                (Double Action Only)
Caliber                 9 x 19 mm (Parabellum)
Overall Length (Slide)   185mm            7.28"
Height w/ Sights         136mm            5.35"
Width                     30mm            1.18"
Length Between Sights    165mm            6.49"
Barrel Length            114mm            4.49"
Barrel Rifling and      Hexagonal profile with
  Twist Direction       Right hand twist
Length of Twist          250mm            9.84"
Magazine Capacity        17 / 19 with +2 extended magazine
Mass (Weight)
Empty w/o magazine       620g            21.91 oz.
Empty magazine (17 rds)   56g             2.08 oz.
Full Magazine (17 rds)* ~260g            ~9.50 oz.
Muzzle Velocity *       ~360 m/sec       ~1180 fps
Muzzle Energy *         ~500 J           ~369 Ft. Lbs.
Trigger Pull            ~2.5kg           ~5-8 lbs.
Trigger Slack             10mm             0.4"
Trigger Travel
  for Discharge         12.5mm             0.5"
Number of Safeties            Three (3)

* Varies depending on type of ammunition.
All specifications subject to change without notice.

        Glock 19 (9mm Compact Size Pistol)
                         Metric           U.S.
Type of                     Safe Action
  Action                (Double Action Only)
Caliber                 9 x 19 mm (Parabellum)
Overall Length (Slide)   174mm            6.85"
Height w/ Sights         124mm            4.88"
Width                     30mm            1.18"
Length Between Sights    152mm            5.98"
Barrel Length            102mm            4.02"
Barrel Rifling and      Hexagonal profile with
  Twist Direction       Right hand twist
Length of Twist          250mm            9.84"
Magazine Capacity        15 / 17 with +2 extended magazine
Mass (Weight)
Empty w/o magazine       595g            20.99 oz.
Empty magazine (15 rds)   54g             1.98 oz.
Full Magazine (15 rds)* ~240g            ~8.55 oz.
Muzzle Velocity *       ~360 m/sec       ~1180 fps
Muzzle Energy *         ~500 J           ~369 Ft. Lbs.
Trigger Pull            ~2.5kg           ~5-8 lbs.
Trigger Slack             10mm             0.4"
Trigger Travel
  for Discharge         12.5mm             0.5"
Number of Safeties            Three (3)

* Varies depending on type of ammunition.
All specifications subject to change without notice.

        Glock 17L (9mm Competition Pistol)
                         Metric           U.S.
Type of                     Safe Action
  Action                (Double Action Only)
Caliber                 9 x 19 mm (Parabellum)
Overall Length (Slide)   225mm            8.85"
Height w/ Sights         136mm            5.35"
Width                     30mm            1.18"
Length Between Sights    205mm            8.07"
Barrel Length            153mm            6.02"
Barrel Rifling and      Hexagonal profile with
  Twist Direction       Right hand twist
Length of Twist          250mm            9.84"
Magazine Capacity        17 / 19 with +2 extended magazine
Mass (Weight)
Empty w/o magazine       666g            23.35 oz.
Empty magazine (17 rds)   56g             2.08 oz.
Full Magazine (17 rds)* ~260g            ~9.50 oz.
Muzzle Velocity *       ~360 m/sec       ~1180 fps
Muzzle Energy *         ~500 J           ~369 Ft. Lbs.
Trigger Pull            ~2.5kg           ~5-8 lbs.
Trigger Slack             10mm             0.4"
Trigger Travel
  for Discharge         12.5mm             0.5"
Number of Safeties            Three (3)

* Varies depending on type of ammunition.
All specifications subject to change without notice.

        Glock 20 (10mm Full Size Pistol)
                         Metric           U.S.
Type of                     Safe Action
  Action                (Double Action Only)
Caliber                       10 mm
Overall Length (Slide)   193mm            7.59"
Height w/ Sights         139mm            5.47"
Width                   32.5mm            1.27"
Length Between Sights    172mm            6.77"
Barrel Length            117mm            4.60"
Barrel Rifling and      Hexagonal profile with
  Twist Direction       Right hand twist
Length of Twist          400mm           15.75"
Magazine Capacity        15                15
Mass (Weight)
Empty w/o magazine       784g            26.35 oz.
Empty magazine            65g             2.05 oz.
Full Magazine *         ~325g           ~11.92 oz.
Muzzle Velocity *       ~370 m/sec       ~1230 fps
Muzzle Energy *         ~750 J           ~575 Ft. Lbs.
Trigger Pull            ~2.5kg           ~5-8 lbs.
Trigger Slack             10mm             0.4"
Trigger Travel
  for Discharge         12.5mm             0.5"
Number of Safeties            Three (3)

* Varies depending on type of ammunition.
All specifications subject to change without notice.

        Glock 21 (.45 ACP Full Size Pistol)
                         Metric           U.S.
Type of                     Safe Action
  Action                (Double Action Only)
Caliber                  11.5 x 21.3 mm    .45
Overall Length (Slide)   193mm            7.59"
Height w/ Sights         139mm            5.47"
Width                   32.5mm            1.27"
Length Between Sights    172mm            6.77"
Barrel Length            117mm            4.60"
Barrel Rifling and      Octagonal profile with
  Twist Direction       Right hand twist
Length of Twist          400mm           15.75"
Magazine Capacity        13                13
Mass (Weight)
Empty w/o magazine       745g            25.22 oz.
Empty magazine            65g             1.98 oz.
Full Magazine *         ~340g           ~11.78 oz.
Muzzle Velocity *       ~250 m/sec       ~820 fps
Muzzle Energy *         ~460 J           ~302 Ft. Lbs.
Trigger Pull            ~2.5kg           ~5-8 lbs.
Trigger Slack             10mm             0.4"
Trigger Travel
  for Discharge         12.5mm             0.5"
Number of Safeties            Three (3)

* Varies depending on type of ammunition.
All specifications subject to change without notice.

        Glock 22 (.40 Full Size Pistol)
                         Metric           U.S.
Type of                     Safe Action
  Action                (Double Action Only)
Caliber                  .40 S & W
Overall Length (Slide)   185mm            7.28"
Height w/ Sights         136mm            5.35"
Width                     30mm            1.18"
Length Between Sights    165mm            6.49"
Barrel Length            114mm            4.49"
Barrel Rifling and      Hexagonal profile with
  Twist Direction       Right hand twist
Length of Twist          400mm           15.75"
Magazine Capacity        15                15
Mass (Weight)
Empty w/o magazine       645g            22.36 oz.
Empty magazine            53g             1.87 oz.
Full Magazine *         ~300g           ~10.62 oz.
Muzzle Velocity *       ~300 m/sec        ~984 fps
Muzzle Energy *         ~520 J            ~386 Ft. Lbs.
Trigger Pull            ~2.5kg           ~5-8 lbs.
Trigger Slack             10mm             0.4"
Trigger Travel
  for Discharge         12.5mm             0.5"
Number of Safeties            Three (3)

* Varies depending on type of ammunition.
All specifications subject to change without notice.

        Glock 23 (.40 Compact Size Pistol)
                         Metric           U.S.
Type of                     Safe Action
  Action                (Double Action Only)
Caliber                 9 x 19 mm (Parabellum)
Overall Length (Slide)   174mm            6.85"
Height w/ Sights         124mm            4.88"
Width                     30mm            1.18"
Length Between Sights    152mm            5.98"
Barrel Length            102mm            4.02"
Barrel Rifling and      Hexagonal profile with
  Twist Direction       Right hand twist
Length of Twist          400mm           15.75"
Magazine Capacity         13               13
Mass (Weight)
Empty w/o magazine       597g            20.67 oz.
Empty magazine            52g             1.76 oz.
Full Magazine *         ~260g            ~9.35 oz.
Muzzle Velocity *       ~300 m/sec       ~984 fps
Muzzle Energy *         ~520 J           ~386 Ft. Lbs.
Trigger Pull            ~2.5kg           ~5-8 lbs.
Trigger Slack             10mm             0.4"
Trigger Travel
  for Discharge         12.5mm             0.5"
Number of Safeties            Three (3)

* Varies depending on type of ammunition.
All specifications subject to change without notice.

Note that trigger pull weight can be approximately 5, 8, or 12 lbs. when 
the pistol has a standard, "New York", or "New York Plus" trigger spring 
installed.

Also, the connectors that are rated at 3.5, 5, and 8 lbs. will change the 
trigger pull characteristics.

*6.  Ammunition Specifications for Glock Pistols

    Glock pistols are designed to be fired with NATO specification 
ammunition.  Therefore the following guidelines and specifications are 
provided so that proper ammunition will be selected for use in Glock 
pistols to assure proper functioning.

    Any deviation from these specifications may lead to improper 
functioning and possibly void the warranty on Glock pistols.

    Glock pistols will function properly with the new generation of 9x19mm 
ammunition including all +P+ and 147 grain subsonic ammunition currently 
in use or being introduced in the United States.

         Minimum (lower limit) specifications for
         Ammunition to be used in Glock Pistols:

Bullet Weight       115 grains   /   7.5 grams
Muzzle Velocity     1180 fps     /   350 meters/sec

    Maximum (upper limit) pressures for 9x19mm ammunition to be used in 
Glock pistols should not exceed 43,500 pounds per square inch/ 3000 BAR.

    Handloaded/reloaded or re-manufactured ammunition may be unsafe and 
voids factory warranty.

                     Ammunition Performance Data
                      (Compiled by Glock, Inc.)

Cartridge  Manufacturer  Bullet Weight  Bullet Type  Barrel Length
Muzzle Velocity  Muzzle Energy         Penetration       Expansion

9mm (FBI)  Winchester    147 gr/9.53g       JHP     4.25" / 107.9mm
902 fps/275 m/s  265.5 ft/lbs/360J  13.99"/355.3mm   .457"/ 11.6 mm

9mm        Winchester    115 gr/7.45g      STIP     4.25" / 107.9mm
1091 fps/333 m/s 303.9 ft/lbs/412J  11.37"/288.8mm   .542"/ 13.7 mm

9mm          Federal     147 gr/9.53g    H-SHOCK    4.25" / 107.9mm
1062 fps/324 m/s 310.5 ft/lbs/421J  14.67"/372.6mm   .485"/ 12.3 mm

9mm (+P+)  Winchester    115 gr/7.45g       JHP        4" / 101.6mm
1305 fps/398 m/s   437 ft/lbs/593J   ~8.0"/203 mm    .600"/ 15.2 mm

9mm (NATO) Winchester    124 gr/8.04g       FMJ        4" / 101.6mm
1185 fps/361 m/s   387 ft/lbs/525J          N/A          N/A

9mm        Remington      88 gr/5.70g       JHP        4" / 101.6mm
1500 fps/457 m/s   440 ft/lbs/597J          N/A          N/A

.40 CAL    Winchester    180 gr/11.66g      JHP        4" / 101.6mm
990 fps/302 m/s    390 ft/lbs/529J  12.20"/309.8mm   .650"/ 16.5 mm

.40 CAL      Federal     180 gr/11.66g    H-SHOCK      4" / 101.6mm
985 fps/300 m/s    384 ft/lbs/520J  14.00"/355.6mm   .690"/ 17.5 mm

.40 CAL    Winchester    155 gr/10.04g      STIP       4" / 101.6mm
1205 fps/367 m/s   500 ft/lbs/678J  12.70"/322.6mm   .600"/ 15.2 mm

.40 CAL      Federal     180 gr/11.66g      JHP        4" / 101.6mm
985 fps/300 m/s    384 ft/lbs/520J          N/A          N/A

10mm (FBI)   Federal     180 gr/11.66g      JHP        5" / 127mm
931 fps/284 m/s   346.4 ft/lbs/470J  17.24"/437.8mm  .547"/ 13.9 mm

10mm       Winchester    180 gr/11.66g      JHP        5" / 127mm
955 fps/291 m/s   364.5 ft/lbs/494J  16.61"/421.8mm  .526"/ 13.4 mm

10mm          Norma      170 gr/11.02g      JHP        5" / 127mm
1358 fps/414 m/s  696.1 ft/lbs/944J  18.44"/468.4mm  .562"/ 14.3 mm

10mm         Hornady     155 gr/10.04g      JHP          N/A
1410 fps/430 m/s    692 ft/lbs/938J         N/A          N/A

10mm         Hornady     200 gr/12.96g      FMJ          N/A
1150 fps/351 m/s    595 ft/lbs/807J         N/A          N/A

.45 ACP    Remington     185 gr/11.99g      JHP        5" / 127mm
903 fps/275 m/s  334.9 ft/lbs/454J    22.21"/564.1mm .540"/ 13.7mm

.45 ACP      Federal     185 gr/11.99g      JHP        5" / 127mm
953 fps/291 m/s    373 ft/lbs/506J    13.62"/345.9mm .623"/ 15.8mm

.45 ACP   Winchester     185 gr/11.99g     STIP        5" / 127mm
951 fps/290 m/s  371.5 ft/lbs/504J    13.58"/344.9mm .619"/ 15.7mm

.45 ACP      Federal     230 gr/14.90g    H-SHOCK      5" / 127mm
802 fps/244 m/s  328.5 ft/lbs/445J    18.28"/464.3mm .621"/ 15.8mm

.45 ACP +P   Remington   185 gr/11.99g      JHP          N/A
1140 fps/347 m/s   534 ft/lbs/724J         N/A           N/A

Note :  Performance levels may change when using different firearms.
Sources :  Cartridge manufacturers and FBI.


*7.  Field Stripping the Glock Pistol

The Glock pistol is field stripped into five (5) basic pieces. These are 
the slide, the barrel, the recoil spring/recoil spring tube assembly, the 
receiver, and the magazine.

--  Prior to Field Stripping, Make Sure Pistol Is Unloaded!!  --

Magazine Removal
-  Point the pistol in a safe direction (a safe direction is where no one 
can possibly be injured in the event of an unintentional discharge).
Finger OFF of the trigger and OUT of the trigger guard.
-  Press in on the magazine catch, located on the left side of the pistol 
at the rear of the trigger guard.
-  Remove the magazine.

Note :  The Glock pistol is designed so that the magazine catch can not 
easily be pressed unintentionally when the pistol is held in a proper 
shooting grip.  For this reason you will have to rotate the hand a few 
degrees to be able to press the catch and release the magazine.

Safety Caution:  Prior to further disassembly, with your finger off of the 
trigger and outside of the trigger guard, point the pistol in a safe 
direction, lock the slide open by pushing up on the slide stop lever with 
the shooting hand thumb while pulling the slide to the rear with the 
non-shooting hand.  Once the slide is locked to the rear, both visually 
and physically (with your little finger) inspect the chamber of the pistol 
to be sure that the chamber is empty.  Also, check the magazine well to be 
sure that a cartridge has not become lodged between the ejector and the 
walls of the magazine well.  Once you are sure that the pistol is 
unloaded, continue with disassembly.

-  Once you have verified that the pistol is unloaded:
-  Pull back slide to release slide stop lever and close action.
-  Point the pistol in a safe direction.
-  Pull the trigger.  You will hear the firing pin spring forward.

Note :  The trigger must be in the rear most position for slide removal.

Slide Removal:

-  Hold the pistol in either hand (shooting hand is easiest for me - Ed.) 
so that four fingers grasp the top of the slide and the thumb is curled 
under the backstrap of the receiver (the "curl" on the back of the grip).  
With these four fingers, pull and hold the slide back approximately 1/10th 
of an inch (2.5mm).

-  At the same time, pull down and hold both side of the slide lock using 
the thumb and index finger of your free hand (the slide lock is located 
above the trigger guard on the polymer receiver).

-  Push the slide forward (with the four fingers grasping the top of the 
slide) until it is fully separated from the receiver.

Note :  Do not attempt to manipulate the trigger while the pistol is 
disassembled.  Unless you are an armorer and have received training on 
"Function Testing the Trigger Safety", covered later, you may damage the 
trigger mechanism.

Barrel Removal

Safety Caution:  The recoil spring is under tension  During removal use 
care to control the recoil spring and/or recoil spring tube.

-  Push the recoil spring tube slightly forward while lifting it away from 
the barrel.

-  Remove the recoil spring tube and recoil spring.

Note :  Glock introduced a combined recoil spring tube and recoil spring, 
with the nomenclature "Recoil Spring Assembly" in 1991.  If you do not 
have a separate recoil spring tube and recoil spring in your Glock pistol, 
you have the newer modification.

    The instructions will refer to a recoil spring tube and recoil spring; 
you may substitute "Recoil Spring Assembly" as appropriate.  There is 
nothing wrong with the older version, however.  Do not attempt to 
disassemble the assembly; it does not need to be disassembled and trying 
to do so will break it.

*8.  Reassembling the Field Stripped Glock Pistol

Reassembly Note:

When installing the recoil spring tube and recoil spring, be sure that the 
back end of the recoil spring tube rests in the half moon cut in the 
bottom of the front barrel lug.  If it is not properly seated and you 
reassemble the pistol, the recoil spring tube may be damaged.

Barrel and Recoil Spring Tube/Recoil Spring Reassembly

-  Lay the pistol slide upside down.
-  Grasp the barrel at the chamber.  While raising the chambered end, move 
the barrel slightly forward.
-  Guide the muzzle of the barrel into the circular hole in the front end 
of the slide.
-  Install the recoil spring tube and recoil spring.

Slide Reassembly

-  Point the receiver in a safe direction.
-  Grasp the slide at the back.
-  Align the cutouts on the rear of the slide near the bottom with the 
forward slide rails on the polymer receiver.
-  Slide the slide back until you can engage the slide stop lever.
-  Engage the slide stop lever.

Note :
   Once the slide is locked to the rear, both visually and physically 
(with your little finger) inspect the chamber of the pistol to be sure 
that the chamber is empty.  Also, check the magazine well to be sure that 
a cartridge has not become lodged between the ejector and the walls of the 
magazine well.

-  Once you have verified that the pistol is unloaded:
-  Pull back slide to release slide stop lever and close action.
-  Point the pistol in a safe direction.
-  Pull the trigger.  You will hear the firing pin spring forward.

    The Glock pistol is reassembled.

*9.  Magazine Disassembly / Reassembly

Caution :  The magazine spring is under tension.  Be sure to maintain 
downward pressure on magazine spring with your thumb while disassembling.


    For all standard floorplates (that have no holes in the bottom and are 
not a "+2" floorplate), hold the magazine upside down in your shooting 
hand, thumb on the right side of the magazine near the floorplate, fingers 
curled around the magazine and touching the front of the magazine.

    Press inward with the thumb and first finger as you press the magazine 
floorplate forward.  As soon as the floorplate starts to move, reposition 
hand so thumb retains magazine spring.

    Remove the floor plate, magazine spring, and follower.

    To remove the floor plate equipped with the magazine reinforcement 
plate (floorplate has a hole in the bottom) :

-  Insert punch into indentation in floorplate, push reinforcement plate 
up inside magazine tube, then remove floor plate the same way as the 
standard floorplate.

    The magazine tube, the follower, the floor plate (if so equipped), and 
the magazine spring may be cleaned.  Do not lubricate anything within the 
magazine.  Insure that all surfaces are wiped dry after cleaning and 
before reassembly.

    To reassemble the magazine, locate the magazine spring.  Place the 
larger diameter end of the magazine spring on the table top.  Reattach the 
magazine follower to the top (narrow) end of the magazine spring.

    Place the magazine larger end down on the table top.  Note which way 
the magazine and the magazine spring "lean" while their bases are flat on 
the table top.  Insert the magazine spring and attached follower into the 
magazine tube so that they are leaning the same way.  The magazine 
follower should have the caliber stamp visible to the front of the 
magazine feed lips (when viewed from the top of the magazine).

    Reinsert the reinforcing plate (if so equipped) in the magazine tube 
below the base of the spring.  You will then have to carefully compress 
the magazine spring at the bottom of the magazine tube.  Slide the 
floorplate back onto the magazine tube fully to complete the reassembly 
process.

    You may also determine if your Glock magazine is a "drop-free" model
or the original model.  Look at the top back of the magazine.  You will
see either a rectangular notch or a semi circle cut out of the magazine.
If it is a semi circle, the magazine is an original style, non "drop-free"
type.  If it is rectangular, it is a newer "drop-free" model.

    With the slide, barrel, recoil spring tube, recoil spring, polymer 
receiver, and (disassembled) magazine, the Glock pistol is completely 
field stripped.  Further disassembly is not required for normal cleaning 
and maintenance.  Further disassembly should be completed only by a Glock 
certified armorer.

*10.  Preventative Maintenance:

Note :  You must field strip the pistol to perform Preventative 
Maintenance.

    The Glock pistol requires periodic cleaning to insure proper function.  
Once field stripped, the barrel and the chamber are easily cleaned from 
the chamber end.  Do not clean the barrel from the muzzle (front) end.

    The inside of the slide and receiver should be wiped clean.  Standard 
firearm solvents can be used on the pistol (I recommend Break-Free CLP; it 
is what is used at Glock H.Q.; -never- use WD-40 on any firearm - Ed.).  
This will insure proper functioning of a new Glock pistol.

    The copper colored lubricant that is found on portion of the slide 
should not be removed, as it will assure long-term lubrication of the 
slide.

    As with any semiautomatic pistol, Glock pistols should not be cleaned 
by merely locking the slide to the rear and inserting the cleaning rod 
from the muzzle end.  This can (and will for sure, eventually - Ed.) cause 
excessive amounts of solvents to build up in both the frame and slide, and 
possibly contribute to malfunctions of the pistol.  The pistol should be 
field stripped every time it is cleaned.

    (Note :  We're talking about gummy build up in the internal firing pin 
channel of the slide.  If it becomes gummy in there, the firing pin will 
be slowed down or blocked and may not set a round off reliably.  The other 
problem is possible primer contamination by an oil or solvent that gets on 
the primer.  If the primer gets contaminated, the round won't go off.  
This applies to any semiautomatic pistol - Ed.).

    The inside of both the chamber and barrel should be wiped completely 
dry once they have been thoroughly cleaned.  The breech face and the area 
under the extractor claw should be both absolutely dry and free of any 
debris after cleaning.

    The slide rail cuts should be cleaned thoroughly by using a clean 
patch on the end of a toothbrush-type cleaning tool.

    With the clean patch wrapped over the brush portion of the toothbrush, 
thoroughly clean the slide rail cuts of all debris and solvents.

    All other areas of the slide and frame (polymer receiver) should be 
checked for cleanliness.  Most parts in the frame are accessible and can 
be wiped with a clean, soft cloth that has been very slightly dampened 
with a quality firearm cleaning solvent.

    After the parts in the frame have been cleaned, they should be wiped 
dry with a clean, soft cloth.  All solvent should be wiped from the parts 
so that they are clean and dry.


*11.  Lubricating the Field Stripped Glock Pistol

    To properly lubricate your Glock pistol after it has been thoroughly 
cleaned and dried, use a clean patch that has been very slightly dampened 
with a quality gun oil.

    Wipe the barrel and the barrel hood (the front of the square piece's 
top edge at the chamber end of the barrel).  Wipe the inside of the slide 
where the barrel hood rubs against the slide, and the ring that the barrel 
slides through the slide.

    You can take one drop of oil on your finger and rub each slide rail, 
or put one drop of oil in each slide rail cut.  Once the slide is moved on 
the receiver after reassembly, the oil drop will be distributed equally in 
the slide rails by moving the slide.

Note :  There is one most important point to lubricate (with one drop of 
quality gun oil) (I prefer Break-Free CLP - Ed.).  You must lubricate the 
point where the trigger bar meets the connector.  This is towards the back 
of the polymer receiver on the right side; (see Function Testing the 
Trigger Safety before pulling the trigger when the pistol is disassembled) 
- when you pull the trigger you can see where the back of the trigger bar 
rubs on the connector.  Repeating, it is most critical that this point be 
very lightly lubricated.

*12.  Dry Firing the Glock Pistol

    It is perfectly safe and normal to dry fire the Glock pistol when it 
is assembled.

    However, when the pistol is disassembled, do not pull back on the back 
lug of the firing pin and let it snap forward.  This can damage the firing 
pin and/or the firing pin safety.  This condition can only be created by 
hand with the pistol disassembled.

    Do not put any oil or solvent inside the firing pin channel or in the 
magazine / magazine tube.  The firing pin channel, the magazine tube and 
other magazine components, and the breech face should be wiped dry before 
reassembly.

    Leaving solvent or lubricant in these areas could cause contamination 
of primers and failure to fire (plus it attracts carbon and crud like a 
magnet - Ed.).

*13.  Function testing the Glock safeties

Function Testing the Trigger Safety

    Once the slide is removed from the receiver the trigger safety can be 
function tested in the following manner.  Look at the right side of the 
pistol.  At the very top just behind the trigger a small piece of metal is 
sticking up from inside the polymer receiver that is part of the trigger 
bar.

    Push forward on this vertical extension of the trigger bar until the 
trigger is in its forward position.  If you then let go of the vertical 
extension, the trigger should remain in it's forward position.  This 
verifies the proper function of the trigger safety.

    Do not pull the trigger after the slide has been removed, as the 
trigger safety is resting against the rear of the frame.  This can damage 
the trigger safety by breaking off the portion of the trigger safety that 
actually prevents the improperly touched trigger from moving to the rear.

    Also, do not pull the trigger when the slide is on the pistol, the 
trigger is in its forward position, and the slide is held to the rear with 
the slide stop lever.  This can also damage the trigger safety.

    Both of these are artificial conditions that do not occur during 
normal firing.

  Glock pistols - Function Testing the Firing Pin Safety

    The firing pin safety is on the underside of the slide near the breech 
face.  It is a metal circle approximately 4 mm across.  Hold the slide in 
a muzzle down position and depress the firing pin safety.  The firing pin 
should move forward and the firing pin nose should be visible protruding 
through the firing pin hole.  The firing pin may need to be pushed forward 
when the pistol is new so that it will protrude from the firing pin hole.

    A second method of checking the firing pin safety for proper free 
movement is to depress the firing pin safety and shake the slide.  With 
the firing pin safety depressed the firing pin should be heard moving 
freely back and forth.  When the firing pin safety is depressed, the 
firing pin should be nearly silent.

    Next, make sure that the firing pin safety is properly engaged.  
Locate the firing pin extension on the underside of the slide near the 
rear.  Hold the slide at the rear and push the firing pin extension 
towards the muzzle (front) of the slide.  The firing pin should not 
protrude through the firing pin hole.  If it does, the firing pin and 
firing pin safety should be replaced by a Glock Certified Armorer.

    If the firing pin does not move freely back and forth and you don't 
have a new gun, the firing pin channel could be clogged with debris.  Have 
a Glock Certified Armorer clean the firing pin channel (this requires 
complete disassembly of the slide and is therefore an Armorer's task).

    Most debris collects in the firing pin channel due to improper 
cleaning.  NEVER spray anything into the firing pin hole.  ALWAYS field 
strip your pistol and clean the barrel from the breech end (while 
separated from the pistol).

Function testing the Drop Safety

    This safety is an internal shelf system that requires the trigger be 
pressed to the rear in order for the firing pin to be released (so it can 
spring forward discharging a round of ammunition).  There is no user test 
for this safety.


*14.  A word on different type of Glock Trigger pulls

    Glock pistols are normally shipped from the factory with a standard 5 
lb. trigger pull.  This is fine for most users.

    There are two items that combine to make up the Glock Trigger pull.  
These are the Connector and the Trigger Spring.

    Glock pistols normally come with the 5 lb. Connector and a standard 5 
lb. coil type Trigger Spring.  With the standard 5 lb. Connector in place, 
two additional trigger pulls are available.  The 8 lb. leaf type Trigger 
Spring is commonly called the New York Trigger Spring.  This spring 
increases the 5 lb. trigger pull to 7.5 - 8.5 lbs.

    The second or stronger version of the leaf type spring is commonly 
called the New York Plus Trigger Spring.  This spring increases the 5 lb. 
trigger pull to 9-11 lbs., making it more similar to a double action 
revolver type trigger pull.

    The 8 lb. connector is only used with the 8 lb. coil type Trigger 
Spring.  The difference between the 8 lb. coil Trigger Spring versus the 8 
lb. New York Trigger Spring is that the NY version has continuous 
resistance through the whole arc of the trigger pull.  The coil version is 
more like the traditional two stage pull in that the first part of the 
pull is long but relatively "lighter", and the full resistance is only 
found more towards the rear of the trigger pull.

    Glock also offers a 3.5 lb Connector for their Competition Models, the 
17-L, 24, and 24-P.  This provides a very light and easy trigger pull and 
is designed for competition shooting only.  This trigger weight is not 
suitable for defensive pistols and is not available on any model other 
than a Competition Model.  It is the standard (& only) trigger available 
on the Competition Models.

    You can have your trigger pull "adjusted" to a standard 5 or 8 lb coil 
type, or an approximate 8 or 10 pound New York type trigger pull by a 
Glock Certified Armorer.


*15.  A Word about Barrel types

    The barrel in Glock pistols is forged from a single piece of metal.  
It is placed on a mandrel and the rifling is literally "hammered" in.

    The Glock pistols use polygonal rifling instead of traditional "cut" 
rifling.  There are no lands and grooves as such in the barrel.  All Glock 
pistols except the Model 21 use Hexagonal polygon rifling.  The Model 21 
uses Octagonal polygon rifling due to the larger barrel contact area of 
the .45 ACP bullet.

    Polygon rifling provides several important advantages.  It is easier 
to clean since there are no square indentations for powder and copper/lead 
fouling to accumulate in.

    When compared to cut rifling, polygon rifling does not deform the 
projectile as much when the barrel "grips" it during passage down the 
bore.  This increases accuracy because a more deformed bullet does not fly 
as accurately as a less deformed bullet.

    The polygon rifling also lets less of the expanding gasses "blow by" 
(actually around) the projectile.  This is because of the inherently 
tighter fit of the angle of the barrel to the projectile.  Velocity is 
higher with a polygon rifled barrel versus a cut rifled barrel, all other 
variables (length, etc). being equal.

    The side benefit of this higher velocity is greater energy from the 
same round from a Glock barrel versus a traditional barrel.

    Glock barrels receive the Tenifer finish both inside and out.  This 
finish allows them to have a much longer than normal barrel life.

(Ed. Note :  Recently Chuck Taylor completed a 75,000 round test on a 
Glock 17.  At the end of the test, the Glock was still shooting average 
groups of less than 3 inches with all types of ammunition from a ransom 
rest at 35 meters.  This is astounding barrel life.  Most pistols have no 
rifling by the throat after 10 or 15 thousand rounds).


*16.  Glocks Sights

    The Glock pistols use either a standard Polymer Sight (fixed or 
adjustable) or a fixed metallic Trijicon Night Sight.  Installing the 
sights (and adjusting the fixed varieties) are a task for a Glock 
Certified Armorer.

    Sight installation (and fixed sight adjustment) require a special 
sight pusher tool made by Glock.  Attempts to drift the rear sight, such 
as with a brass or plastic hammer and punch, will break the sight.  (Ed. 
note - If you try it, you'll then have to purchase a new sight, as well as 
have it installed for you anyway.  Save the trouble and get it done right; 
my sights have never needed adjusting after the initial adjustment)

    (Ed. note continued - I do not like the plastic adjustable sight at 
all.  I believe it is too fragile for duty use.  I prefer the fixed 
plastic sight to the adjustable for any duty/defensive use.  I much prefer 
the metallic Trijicon Night Sights to any of the plastic varieties.  It 
may not be the best target sight, but it's a good three dot type combat 
sight).

    Glock polymer rear sights come in five varieties.  They are:

Sight Marking        Height (mm/in)     Remarks
*************        **************     *************************

 ---
 ---                  7.3 / 0.29"       Highest impact
-----

 ---                                    High Impact
-----                 6.9 / 0.27"       Standard on .45, 10mm models

-----                 6.5 / 0.256"      Standard on 9mm, .40 models

-----
 ---                  6.1 / 0.24"       lower impact

(blank)               6.1 to 7.3/       click adjustable rear sight
                      0.20" to 0.29"


Note:  If you want to shift the point of impact on your target to the 
left, you have to move the rear sight to the left and vice versa for the 
right (left and right in muzzle direction).

    Point of Impact               Action Needed

    Left of Center                Move rear sight right
    Right of Center               Move rear sight left
    Low                           Have higher rear sight installed
    High                          Have lower rear sight installed

Each change in the fixed sight increment results in a 3" change in round 
impact at 25 yards.



*17.  Service Procedures and Trouble Shooting

(Note : an asterisk (*) in the Correction column means that a Glock
 Certified Armorer needs to perform this task)

-- Stoppages --
Observed Problem       Probable Causes           Corrections
---------------------- ------------------------- -------------------
Fail to Extract        Extractor Worn/Broken/    Replace
                       Missing
                       Over-powered, Under-      Change Ammunition
                        powered, or defective
                        ammunition
                       Dirt under extractor      Clean extractor and
                        claw                      check function
                       Dirty chamber             Clean Chamber
                       Shooting with an          Lock shooting
                        unlocked wrist            hand wrist

Fail to Eject /        Broken/damaged ejector    *Turn in to Armorer
Erratic ejection                                  (replace trigger
(including stove                                  mechanism housing w/
 pipes)                                           ejector)
                       Under-powered Ammunition  Change Ammunition
                       Dirty chamber             Clean chamber
                       Shooting with an          Lock shooting
                        unlocked wrist            hand wrist
                       Lack of lubrication       Lubricate
                       Dirty gun                 Clean

Failure to Feed        Magazine not properly     Reinsert magazine
                        inserted
                       Under-powered Ammunition  Change Ammunition
                       Dirty chamber             Clean chamber
                       Shooting with an          Lock shooting
                        unlocked wrist            hand wrist
                       Tight Extractor           *Turn in to Armorer
                       Deformed magazine
                       (magazine sides or lips   Replace magazine
                        deformed / dented)
                       Weak recoil spring        Replace

Slide fails to lock    Magazine follower broken  Replace follower
open after last        Dirty Magazine            Clean and inspect
round                                             Magazine
                       Weak Magazine Spring      Replace if necessary
                       Worn slide stop lever     *replace
                        notch
                       Dirty gun                 Clean
                       Needs lubrication         Lubricate
                       Deformed magazine         Magazine sides deformed
                                                  by trying to load too
                                                  many rounds - replace
                                                  magazine
                       Under-powered Ammunition  Change Ammunition
                       Shooting with an          Lock shooting
                        unlocked wrist            hand wrist
                       Trigger pin inserted      *The trigger pin may be
                        too far                   inserted too far to the
                                                  left.  This can cause
                                                  the spring on the slide
                                                  stop lever to bind.
                                                  Check to see if the
                                                  slide stop lever moves
                                                  freely. If not, press
                                                  the trigger pin slightly
                                                  to the right until the
                                                  slide stop lever moves
                                                  freely.
                       Slide stop lever worn     Inspect and replace
                        or damaged                if necessary.
--Failure to Fire--
No primer strike       Slide out of battery
                        (DON'T force into
                        battery) due to:
                       Deformed/defective round  Inspect and replace round
                       Under-powered Ammunition  Change Ammunition
                       Damaged/weak recoil       Replace recoil spring
                        spring
                       Damaged recoil spring     Replace recoil spring
                        tube                     tube
                       Shooting with an          Lock shooting
                        unlocked wrist            hand wrist
                       Barrel, slide, and        Field strip and clean
                        receiver mating
                        surfaces are
                        excessively dirty
                       Gun dirty / obstructed    Clean chamber
                        chamber

Light, centered        Hard primer (Submachine   Change Ammunition
strike                  Gun ammunition)
                       Obstructed firing pin     *Remove, inspect and
                        channel                   clean firing pin and
                                                  firing pin spring.
                                                  Clean firing pin
                                                  Channel.

--Inconsistent         Connector loose in        *Replace housing
  trigger pull or       housing
  trigger will not     Pistol excessively dirty  Field strip and clean
  release--            Wrong trigger bar         *Replace
                       Connector needs
                        Lubrication              Field strip and oil.
                       Trigger bar is bent or    *Replace trigger bar
                        damaged

--Trigger safety       Improperly stored in      *Replace Trigger Bar.
  fails to return to    original box with         When stored in original
  forward/engaged       trigger in full forward   box, pistol must be
  position--            position (trigger         unloaded, trigger in
                        safety fully depressed)   back position.

--Firing pin fails     Damaged, worn, or         *Replace both firing pin
  function test as      defective firing pin      and firing pin safety
  described in this     safety
  manual--

--No primer strike--   Worn or broken firing     *Replace
                        pin tip.
                       Obstructed channel.       *Clear
                       Spring cups inverted.     *Change

--Light off center     Tight extractor           *Change
  strike--             Dirty gun                 Field strip and clean
                       Slide Lock reversed or    *Replace
                        not beveled.

--Locks open early--   Improper hand position    Change grip
                       Reverse tension on        *Replace
                        slide stop lever spring
                       Damaged slide stop lever  *Replace

*18.  Special Features of the Glock 17

    The Glock 17, NATO Stock Number 1005/25/133/6775, is a versatile 
pistol.  It may be equipped with an optional set of maritime spring cups.  
These are two small parts within the firing pin assembly.  The maritime 
spring cups are only available from Glock by special order, and are not 
included on any Model 17 sold by Glock.

Note :  Do not attempt to do the following.  It is an extremely dangerous 
activity.  This information is included only to show the versatility and 
Special Warfare uses of the Glock 17 pistol.  Following these instructions 
can lead to serious bodily injury.

Note :  Glock and this Glock armorer specifically disclaim any liability 
from anyone attempting to perform or performing underwater firing.  This 
is only for trained personnel wearing proper equipment to protect 
themselves from the effects of firing ammunition underwater.  You have 
been warned.

    The Glock 17 pistol is capable of firing repeatedly while submersed 
under water.  The action will cycle reliably, if a little bit slower while 
submersed.  NATO specification ammunition, such as Winchester's Ranger 
RA9124N, with waterproof sealed primers and case mouths is recommended.

    This applies only to the Glock 17 pistol.  Never attempt to perform 
any underwater firing with any other Glock pistol than the Model 17 as the 
pistol may literally blow up.  Only the Glock 17 was designed to accept 
modified spring cups to perform underwater firing, and only the Model 17 
is designed to remain within acceptable pressure limits when fired 
underwater.  The other pistols all generated too much internal pressure 
upon firing to be safe, especially the .40 S&W pistols.

    The maritime spring cups insure that water can pass by the firing pin 
within the firing pin channel.  These spring cups prevent the creation of 
any hydraulic force within the firing pin channel (which would slow the 
firing pin down, causing lighter primer strikes).

    The user of the Maritime spring cup-equipped Glock must keep several 
things in mind.  They must use only full metal jacket, ball type 
ammunition.  This is because the water within the barrel of the submersed 
Glock 17 will spread the hollow point out within the barrel itself upon 
firing.  The hollow point would cause further increased pressures by 
increasing the bearing surface of the bullet to the barrel.

    It also would not be accurate as it would expand further yet upon 
leaving the barrel, and would slow down very quickly while tumbling.  
Think of it as the bullet has entered ballistic gelatin.  That is what the 
water is like in the barrel upon firing.

    The Glock 17 also must be fully submersed underwater.  There must not 
be any air left within the pistol.  The user after fully submersing 
(himself and) the Glock 17 normally points the muzzle towards the surface 
of the water to allow the air in the barrel to escape.

    At least one specialized Scuba diving group regularly uses their Glock 
Model 17's to dispatch sharks where they dive.  The Glock 17 using NATO 
specification ball ammunition  will completely penetrate a minimum of one 
1/2" pine board at a distance of ten feet from the muzzle when fired 
underwater.

    The ability of the specially equipped Glock 17 is normally only of any 
use in some specialized warfare situation.  It is included here only to 
show how this pistol is sometimes usable (& has been used) by various 
Special Warfare units.

*19.  The Glock 18 Select fire Machine Pistol

    The Glock 18 is a specialized model only available to police and the 
military.  It is a selective fire machine pistol chambered for the 9mm 
Parabellum cartridge.  It is based on the Glock 17.  The dimensions of the 
slide, receiver, etc. of the Glock 18 have been specially modified so that 
they are not physically interchangeable with the Glock 17.

    The Glock 18 fires from a closed breech position similar to the M-16 
rifle and differing from the open bolt position of most earlier full 
automatic designs.

    The cyclic rate of the Glock 18 using NATO specification ball 
ammunition is approximately 1200 rounds per minute.  This is a very fast 
cyclic rate.

    The Glock 18 was developed to fill a counter terrorism / executive 
protection role.  It combines high firepower with concealability.  The 
Glock 18 is normally carried with the 19 round "Plus-2" magazine, giving 
it a total of twenty rounds when fully loaded with a cartridge in the 
chamber.  This provides for concealability.

    A special extended magazine of 33 rounds capacity is available for the 
Glock 18.  It extends downward from the butt of the pistol when fully 
inserted.  This magazine is physically compatible with the Glock 17 and 
19, but sales of the 33 round magazine are restricted to Law Enforcement 
Agencies and the military.

    The selector switch itself is located on the left rear portion of the 
slide.  It is a circular dial with a lever.  The dial has two markings; a 
single dot and two dots.  When the dial is positioned at the single dot, 
the Glock 18 performs similar to a semi-automatic Glock 17.  When the dial 
is positioned at the two dot setting, the pistol is in full automatic 
mode.

    The Glock 18 was designed in part so that counter terror unit 
operators could wear the pistol concealed when on assignment.

*20.  New Glock Models

    In 1994 Glock introduced a new competition model chambered in .40 S&W.  
This model is designated the Glock 24.  It is pretty much identical to the 
model 17-L with the exception of the caliber.  It is also available in a 
ported barrel model (to minimize shot to shot recovery time and muzzle 
flip).  It is designated the Glock 24P.  One instructor at Glock I have 
spoken with says the 24P have barely perceptible muzzle flip and is a joy 
to shoot.  I would tend to believe him.

    Glock has a .380 pistol available only for European sales.  It is the 
Glock 25.  It was made in .380 because most European countries forbid 
private citizens to own anything chambered in the more powerful "military 
chamberings" such as 9mm Parabellum.

    Glock will be introducing two new models in the Fall of 1995.  These 
are going to be designated the Models 26 and 27.  Both models will employ 
a 2.5" barrel and a short staggered double column magazine.

     The Glock 26 is a 9mm sub compact with a 10 round magazine capacity.  
The Glock 27 is a .40 S&W sub compact with an 8 round magazine capacity.  
These Glocks will truly be pocket sized pistols firing more powerful 
ammunition than traditional pocket sized guns (such as the various .22, 
.25, and a few very small .380's).

    Demand will very probably outrun supply of these new mini Glocks.  
They will utilize the same internal functions as other Glocks.  The
following velocities were obtained in initial testing using Federal's
Hydra-Shok ammunition; 1040 fps for the 9mm, and 1014 fps with the .40
S&W.  This is very high for such a short barrel.

*21.  Miscellaneous Glock facts

    Gaston Glock is an engineer specializing in plastics.  Mr. Glock named
the Glock 17 after his patent; it is the 17th patent he has been granted.

    Glock still makes their original lightweight field entrenching tool
and lightweight field knives.  Glock originally manufactured this and
other type of equipment (including grenades) for the Austrian Army.

    83 percent of the Glock 17's mass is metal; the remaining 17 percent
is polymer.

    The slide rides on four super hardened rails.

    The slide on Glock pistols can physically only come off of the pistol
towards the muzzle.

    The original Glock magazines were purposely designed to -not- drop
free during reloading so that they would be removed by hand and not lost
on the battlefield during combat (remember, this pistol was designed for
military duty).

    The polymer frame is completely solid and functional from negative
65 degrees to 400 degrees Fahrenheit.  (Note :  If the pistol isn't
operable, you won't be either!  Ed.)

    The lines on the breech face are created when the breach face is
broach cut and formed.  Glock found it did not affect function in any
way, so the breech face was never polished out by hand (which would add
to the cost of the pistol).

    The Glock 9mm models have only 33 parts, the other calibers have 34
(they add a reinforcing pin through the locking block).  This is less than
half the number of components versus most comparable duty pistols.  Fewer
parts means fewer things to go wrong, everything else being equal.

    It takes approximately 80 seconds to injection mold the lower receiver
of a Glock pistol.  It takes approximately 8 hours for a single billet of
carbon steel to be made into a Glock slide by a CNC machine.


*22.  Conclusion and Addresses / Phone Numbers;
      How to contact the Author and Glock, Inc.

    I've found the Glock to be an excellent pistol.  I carry one every day
of my life and have found it to be a worthy companion.  If you have any
questions or comments, I'd be glad to try to answer any questions and
reply to any comments.  If I can't answer your question, you can contact
Glock or your nearest Glock field representative.

The quickest, easiest, and best way to contact me is by calling in at my 
Bulletin Board System:

    The KATN BBS
    (314) 896-9309
    24 hours a day, 365 days a year
    USR 28.8 V.34 / V.FC modem

Snail Mail (a distant second choice) is available via:

        John Leveron
        P.O. Box 105323
        Jefferson City, MO
        65110-5323

    Please include a self addressed stamped envelope for a return reply 
due to the mailing costs for all of the replies.

    The KATN BBS is located in Holts Summit, MO.  It is a free access 
electronic Bulletin Board System dedicated to the right (of the average 
citizen) to keep and bear arms.  Access and file privileges are granted 
on the first call (after answering a new user questionnaire if you've 
never logged on before).

    The Sysop of The KATN BBS is John Leveron.  He is a full time Police 
Patrolman and a factory certified Glock and Beretta Armorer.  He currently 
serves as the firearms instructor for his Police Department.  His hobbies 
include camping, shooting, online computing, programming, and reloading.  
Many files related to his interests can be found on his BBS.

    Again, please bear in mind that Glock is not responsible for this 
document.  Glock may, however, be contacted for questions or comments.
Glock may be reached as follows:

(In the U.S.A. , Canada)

Glock, Inc.
6000 Highlands Parkway
Smyrna, Georgia 30082 USA
Telephone (404) 432-1202
Fax       (404) 433-8719
Telex     543353 glock atl ud

(In Europe, Africa, Middle East)

Glock Ges.m.b.H.
P.O. Box 50
A-2232 Deutsch-Wagram, Austria
Telephone (43) 2247-2460
Fax       (43) 2247-2460/12
Telex     133 307 glock a

(In Asia, Australia)

Glock (H.K.) Ltd.
No. 1, Ma Wor Road, Tai Po
New Territories, Hong Kong
Telephone (852) 657-2868
Fax       (852) 654-7089

(In Latin America, Central America, Caribbean)

Glock America S.A.
Apartado Aereo 50661
Caracas 1050-A, Venezuela
Telephone (582) 98-60332, 61889
Fax       (582) 98-53528
Telex     27943 beger vc


*23.  Special Thanks

    I would like to thank Glock for their generous assistance with this 
project and for providing certain technical information.  I would also 
like to thank them for creating such a fine pistol.


                                                 John Leveron,

                                                 Sysop,
                                                 The KATN BBS
