Remarkable for its accuracy and light recoil, the Glock 21 Gen4 delivers the legendary stopping power. The modular backstrap design lets the user adapt the grip to hand size, and the frame surface exhibits the scientifically-designed Gen4 rough textured technology. This model features a dual-recoil spring assembly that substantially increases the life of the system, and the enlarged reversible magazine catch easily accommodates left- or right-handed operators. The Generation 4 frame retains the Glock accessory rail for accessory attachment.
| Action | safe action |
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| Barrel | 4.60" |
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| Finish | Gas Nitride |
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| Length | 8.03" |
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| Sights | Fixed Glock Sights |
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| Caliber | 45 ACP |
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| Capacity | 10 + 1 |
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| Magazine | 3 10 rd. |
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| Stock Frame Grips | Polymer Frame Black Polymer Polymer Frame |
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Determined at checkout.
