Selected Handgun Detail

Manufacturer
	Glock Ges.m.b.H. More Info

About the Gun

Full-size, polymer-framed pistol utilizing the large-frame platform shared with the G21, but adapted for the shorter .45 GAP cartridge to achieve similar capacity and handling characteristics in a slightly more compact overall package. It employs a locked-breech, short-recoil operating system with a polygonal rifled barrel and double-stack magazines holding 10 rounds standard (with higher-capacity options available in unrestricted markets). All pre- This is a Gen3 configuration, incorporating an accessory rail on the dust cover, finger grooves along the front strap, thumb rests on the frame sides, and the revised Gen3 grip texture pattern.

Production

Limited production began in 2003 and ran through the early 2010s.

Market value

MSRP at production was around $550–$600. Current market value for examples in very good to excellent condition reaches $550–$600.

Cartridge Specifications
Cartridge:	.45 GAP
Alias:	.45 Glock Automatic Pistol
More Info

Analysis

The Glock 37 shares consistent Gen3 mechanics adapted for the .45 GAP cartridge, demonstrating reliable durability in law enforcement duty roles and civilian applications where the cartridge's design (shorter case length than .45 ACP with comparable ballistics) was intended to offer advantages in magazine capacity and frame ergonomics. Major components maintain broad compatibility with Gen3 Glock 21 parts in many areas (such as frame architecture, recoil springs, and most internals), enabling interchangeability and aftermarket support with only minor differences in grip feel due to the slightly shorter slide travel. The polygonal rifling supports reliable function with standard .45 GAP ammunition and contributes to consistent practical accuracy at typical defensive and range distances. The platform's full-size dimensions and 10-round standard capacity align with .45 ACP large-frame models, while the accessory rail allows for mounting lights or lasers and the finger grooves with thumb rests provide ergonomic adjustments for various hand sizes. The .45 GAP chambering produces recoil characteristics similar to .45 ACP in the same frame mass, though the cartridge's limited adoption restricted broader availability and ammunition options compared to .45 ACP equivalents. Secondary market preferences depend primarily on condition, originality, remaining finish, and individual grip fit rather than any inherent differences in mechanical performance or durability relative to other Gen3 full-size models.