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Selected Handgun Detail

Glock
Model 21
Glock Pistol 21 .45 Auto Variant-1
Scale To:
Gun Dimensions Width:1.27-in
Length:8.22-in Height:5.47-in
Barrel:4.6-in Weight:29.3-oz
1 Variant
Gun Rankings
  • Power Factor (230 grain bullet)192050
  • Recoil Factor (230 grain bullet)8.83 ft-lb
  • Total Capacity14 rounds
  • ConcealabilityFair
  • Defense Factor88%
Gun Specifications
Type:Pistol
Produced:1990 -
Caliber:.45 Auto
Action:recoil operated semi-automatic
Trigger:striker single-action (SA)
Safety:'Safe Action' trigger safety
Magazine:13-round
Frame:polymer
Grip:integrated polymer
Sights:fixed, white dot front, white square U rear
Notes:polygonal rifling
Manufacturer
Glock Ges.m.b.H.
More Info
Gun Value
MSRP:$637.00Used Est:$500.00
Last Update:7/3/2025
About the Gun

One of the first successful polymer framed designs, Glock handguns are common sidearms among law enforcement agencies and military organizations around the world. Although a striker-fired pistol, the Glock employs a single-action (SA) trigger, meaning that the trigger does not cock the gun, but only releases the striker when pulled. Cocking of the striker is performed by the retracting slide. Glock pistols have no manual safeties. The trigger is the only operating element. All three internal pistol safeties are deactivated when the unique single-action trigger is pulled, and automatically activated when it is released. For more information on the Glock design, please refer to the Glock pistol animation in the Basics section.

Cartridge Specifications
Cartridge: .45 Automatic
Alias: .45 Automatic Colt Pistol (ACP)
More Info
Ballistics for This Gun
Selected Bullet Mass:230 grains
MV:835 ft/sec ME:356 ft-lbs
About the Cartridge

This cartridge was developed by John Browning and was adopted by the United States Ordnance Department along with the Colt-Browning automatic pistol in 1911. It has also been made the official military handgun chambering by several other governments, notably Argentina, Mexico and Norway. The 45 Automatic is the most powerful military handgun cartridge in use today. This is a heavy and powerful sub-sonic round. Although its muzzle energy can exceed 400 ft-lbs, its velocity and bullet weight creates a steep trajectory curve that limits its effective range to self-defense distances.

User Rating
3 User Ratings
3 User Comments
User Comments

4 of 5 Stars
By aejohnson38 on 10 Dec 2024
nice

0 of 5 Stars
Reliable
By Joecpa3244 on 01 May 2021
Good for self defense. Too big for conceal carry

5 of 5 Stars
Great tool
By TriggerCreep on 14 Dec 2018
This gun performs. I really like this pistol. I like every Glock I’ve fired, but do not currently own one. This length is great for the 45ACP and tames recoil.