SoftAir USA FN Herstal P90 6mm Caliber AEG Electric Airsoft Rifle - Tophatter's Army Products & Self DefenseThe Soft Air USA FN Herstal P90 6mm Caliber AEG Electric Airsoft Rifle shoots up to 400 shots per minute at a velocity of up to 275 fps using . 12g airsoft BBs and features a fixed hop up system that enables you to fire in both semi and fully automatic modes. The rifle features battery powered action (NiMH battery and charger included) and an aluminum smooth bore barrel that utilizes the BAXS shooting system. Features and Benefits For use with . 12g