Description
The GLOCK 21 GEN4 is a full-size .45 ACP pistol from the renowned Austrian manufacturer. This fourth-generation model features a polymer frame with interchangeable backstraps and the durable nDLC finish. It stands out with its enhanced recoil spring assembly and a larger magazine capacity for its caliber, providing reliable performance for duty, home defense, or sport shooting.
Key Features
- Chambered in .45 Auto for proven stopping power.
- Gen4 RTF2 frame with interchangeable backstraps for custom grip fit.
- Dual recoil spring assembly reduces felt recoil and increases component life.
- Rough Textured Frame (RTF) and reversible magazine catch for secure handling.
- Standard 13-round magazine capacity, with extended options available.
Specifications
| Caliber / Type | .45 Auto (ACP) |
|---|---|
| Material | Polymer Frame, Steel Slide |
| Finish | nDLC (Diamond-Like Carbon) |
| Compatibility | GLOCK 21 Gen4 models; accepts Gen3/4 magazines. |
| Weight | 26.28 oz (unloaded) |
The GLOCK 21 GEN4’s reliability stems from its Safe Action system and robust dual recoil spring. The .45 ACP cartridge delivers significant energy transfer, making it a standard for law enforcement and defensive use. The hardened nDLC finish on the slide provides exceptional corrosion resistance, ensuring long-term durability in various environmental conditions.




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