- Drop-free 22-shot magazine also houses the CO2 capsule
- Co2 powered steel BB pistol
- Ambidextrous magazine release
- Fixed front and rear sights
- Integrated accessory rail
- Realistic hammer movement
CO2 powered BB guns are great fun for plinking and target shooting. Check out this HK USP. It 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.