Description
The GLOCK 37 is a .45 GAP caliber slide assembly designed for builders seeking a reliable, drop-in upgrade for their P80 frame. It’s ideal for those who want the .45 caliber performance in a standard GLOCK-sized platform without the need for gunsmithing. We’ve stocked this slide since spring 2025, and it consistently brings repeat customers back for its straightforward performance.
Why This One?
- Drop-In Reliability: Our staff confirms a drop-in fit on every frame we tested. No filing, fitting, or gunsmithing is required for proper function.
- Proven .45 GAP Platform: Built to GLOCK’s specifications for the .45 GAP cartridge, offering a potent .45 caliber option in a more compact slide profile than a .45 ACP.
- Durable Factory Finish: Features the standard GLOCK nDLC finish for excellent corrosion resistance and long-term durability under hard use.
- Complete Upper Assembly: This is a complete slide kit. It includes the slide, barrel, and recoil spring assembly, ready to mate with your compatible frame and lower parts kit.
- Consistent Performance: Its popularity with our repeat customers speaks to its reliable function and satisfaction in completed builds.
Full Spec Sheet
| Model | GLOCK 37 |
| Caliber | .45 GAP |
| Condition | Factory New |
| Finish | GLOCK nDLC (Black) |
| Weight (measured) | 1.2 oz |
| Sight System | Standard GLOCK polymer front & rear |
| Compatibility | P80 PF940CL, PF940v2, and other compatible G37 frames |
| Included | Complete Slide, Barrel, Recoil Spring Assembly |
Q & A
What frames is this GLOCK 37 slide compatible with?
This slide is designed for frames built to the GLOCK 37 specification. This includes the P80 PF940CL and PF940v2 frames, among other compatible aftermarket or OEM frames patterned for the G37.
Is the .45 GAP ammunition easy to find?
While not as ubiquitous as 9mm or .45 ACP, .45 GAP ammunition is produced by major manufacturers like Federal, Speer, and Hornady. It is readily available online and at many larger sporting goods stores.
Does this slide come with iron sights installed?
Yes. This complete slide assembly comes from the factory with the standard GLOCK polymer front and rear sights installed.
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