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The Umarex HK USP is a 4.5mm BB pistol that holds 22-rounds in a heavyweight magazine that also houses the CO2 cylinder that powers this BB pistol. It has an ambidextrous magazine release, integrated accessory rail and realistic hammer movement. This is a great practice pistol for 9mm USP owners. For just pennies a shot you can shoot for hours. It features a durable polymer construction with officially licensed Heckler and Koch trademarks.
Compatible magazine: UMX2252301
| Ammo Type: | Steel BB |
| Barrel Size: | 4 Inch |
| FPS: | 400 to 450 |
| Caliber: | 4.5 mm (.177 cal) |
| Gun Action: | Semi-Automatic |
| Power Source: | Co2 |
| Trigger Action: | Double |
| Safety: | Manual |
| Slide: | Non-Blowback |
| Front Sight: | Blade |
| Rear Sight: | Fixed |
| Barrel Length: | 4 Inch |
