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Selected Handgun Detail

Glock
Model 37 Gen4
Glock Pistol 37 Gen4 .45 GAP Variant-1
Scale To:
Gun Dimensions Width:1.3-in
Length:7.95-in Height:5.51-in
Barrel:4.49-in Weight:28.95-oz
1 Variant
Gun Rankings
  • Power Factor (230 grain bullet)198260
  • Recoil Factor (230 grain bullet)8.89 ft-lb
  • Total Capacity11 rounds
  • ConcealabilityFair
  • Defense Factor85%
Gun Specifications
Type:Pistol
Caliber:.45 GAP
Action:recoil operated semi-automatic
Trigger:striker single-action (SA)
Safety:'Safe Action' trigger safety
Magazine:10-round
Frame:black polymer
Grip:integrated polymer
Sights:fixed, white dot front, white square U rear
Notes:polygonal rifling
Manufacturer
Glock Ges.m.b.H.
More Info
About the Gun

Fourth-generation full-size pistol in .45 GAP features a polymer frame with interchangeable backstraps that allow adjustment of grip circumference and angle for different hand sizes. It includes an enlarged reversible magazine release, a dual-recoil-spring assembly, and rough-textured frame surfaces. The slide houses standard fixed sights, and the design maintains the short-recoil, locked-breech operating system with a striker-fired trigger mechanism.

Production

Produced from 2010 through 2025.

Market value
Last updated: 3/31/2026

MSRP at production was around $650. Used examples currently average around $420 to $500 in standard condition.

Cartridge Specifications
Cartridge: .45 GAP
Alias: .45 Glock Automatic Pistol
More Info
Ballistics for This Gun
Selected Bullet Mass:230 grains
MV:862 ft/sec ME:380 ft-lbs
Analysis

This variant applied the Gen4 ergonomic and recoil-management updates to the .45 GAP platform, which was designed to deliver ballistics comparable to .45 ACP within the dimensions of a standard full-size Glock frame. The model offered an alternative for users seeking .45-caliber performance without the wider grip of the G21. Adoption remained limited due to the cartridge's relatively narrow market penetration and declining availability of factory ammunition. Secondary market supply is low, reflecting modest production numbers.

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