The GLOCK 27 GEN4 is a .40 S&W subcompact pistol designed for deep concealment and reliable performance. It’s a primary choice for law enforcement backup and civilian concealed carry where maximum power in a minimal footprint is required. We’ve stocked this model since Q4 2025, and it consistently brings repeat customers back for its proven track record.
Stand-Out Features
- Subcompact .40 S&W Frame: Delivers full-power .40 S&W performance in a package smaller than most 9mm compacts.
- GEN4 Dual Recoil Spring: The captured, dual-recoil spring assembly significantly reduces felt recoil, improving control and shot-to-shot recovery.
- Interchangeable Backstraps: Includes multiple backstrap sizes (Medium, Large, Beaver Tail) to fit a wide range of hand sizes for a secure, custom grip.
- Rough Textured Frame: The enhanced RTF4 (Rough Textured Frame) grip pattern provides a positive hold in all conditions without being abrasive.
- Modular Design: Shares magazine compatibility (with sleeve) and many internal components with larger GLOCK .40 S&W models for simplified maintenance and parts commonality.
Technical Data
| Caliber | .40 S&W |
| Barrel Length | 3.46 inches |
| Overall Length | 6.29 inches |
| Height | 4.17 inches |
| Width | 1.18 inches |
| Weight (measured) | 5.8 oz (unloaded, no magazine) |
| Magazine Capacity | 9 rounds (standard) |
| Frame Finish | Polymer with nDLC finish |
Your Questions Answered
Is the recoil manageable for a subcompact .40?
Yes. The GEN4 dual recoil spring system is specifically engineered to mitigate the sharper recoil impulse of the .40 S&W cartridge in a small frame. Our staff notes the weight distribution and spring system make it surprisingly controllable for its size and caliber.
What holsters fit the GLOCK 27 GEN4?
It fits most holsters designed for the GLOCK 27. Due to the slightly altered texture and magazine release on the GEN4, some older, form-fitted leather holsters may be tight. We recommend checking fit with Kydex or polymer holsters marked for GEN4 models for optimal retention.
Can I use magazines from a GLOCK 22 or 23?
Yes. Full-size GLOCK 22 (.40 S&W) 15-round magazines and compact GLOCK 23 13-round magazines will function in the GLOCK 27. Using a magazine sleeve (sold separately) is recommended for a seamless grip extension and to prevent pinching.
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