The Crosman Full Auto R1 BB air rifle maximizes backyard fun! Fueled by two 12-gram CO2 cartridges and a 25 round drop out magazine you wil have target cans flying in no time. The rifle features a genuine feel familiar controls and an intense 1400 round per minute rate of fire all at a jaw dropping rate of up to 430 fps. Even better the rifle is fully customizable with a 6 position adjustable stock AR compatible buttstock/pistol grip and a Picatinny rail that provides endless accessorie mounting opportunities. Stay on target with the included rail mounted red light laser sight and Take it Outside with Crosman. - Caliber: .177 - Powerplant: CO2 - Steel BB Velocity: Up to 430 fps - Product Weight: 6.07 lbs - Barrel Material: Steel - Barrel Type: Smooth Bore - Material: Nylon Fiber - Mounting Rail: Picatinny - Stock Style: M4 Adjustable - Stock Material: Nylon Fiber - Safety: Selector