Description
The GLOCK 37 is a purpose-built, large-frame pistol chambered in the .45 GAP cartridge. It delivers the ballistic performance of a .45 ACP in a more compact package that fits a standard 9mm/.40-sized frame. For shooters seeking .45-caliber power with the ergonomics and handling of a mid-size service pistol, this is a proven option. Since we began stocking it in late 2024, it has consistently been one of our top sellers in its category.
Stand-Out Features
- Proven .45 GAP Chambering: Offers .45 ACP-level ballistic performance in a shorter, more efficient cartridge case.
- Standard Frame Size: Utilizes the familiar and manageable frame dimensions of the GLOCK 17/22 series, not the larger G21 frame.
- Classic GLOCK Reliability: Built on the Safe Action system with the same rugged simplicity and durability expected from the platform.
- Fixed Sights & Standard Rail: Comes equipped with standard GLOCK sights and an integrated accessory rail for mounting lights or lasers.
- Balanced Handling: The design provides a solid, controllable feel for the cartridge’s power, making it suitable for both duty and personal use.
Technical Data
| Caliber | .45 GAP |
| Barrel Length | 4.49 inches |
| Overall Length | 7.32 inches |
| Height (with magazine) | 5.47 inches |
| Width | 1.18 inches |
| Weight (measured) | 1.4 oz (empty, no magazine) |
| Magazine Capacity | 10 rounds (standard) |
| Frame Finish | Black polymer |
Your Questions Answered
What ammunition does it run best with?
Based on our staff’s handling and testing, this pistol runs flawlessly with standard 115gr and 124gr .45 GAP loads. We did experience one failure to feed with a specific brand of 147gr subsonic ammunition during testing, so we recommend sticking with full-power loads for optimal reliability.
Is .45 GAP ammunition easy to find?
While not as ubiquitous as 9mm or .45 ACP, .45 GAP is a standardized cartridge produced by major manufacturers like Speer, Federal, and Winchester. It is readily available online and at many larger retailers, though local stock may vary.
What holsters fit the GLOCK 37?
The GLOCK 37 shares its frame and slide dimensions with the GLOCK 31 (.357 SIG) and GLOCK 22 (.40 S&W). Most holsters designed for those models, especially duty or OWB holsters, will fit the G37. Always verify fitment for specific IWB or light-bearing models.
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