The Crosman AK1 BB air rifle maximizes backyard fun!. Featuring full-auto and semi-auto options powered by dual CO2 powerlets the Crosman AK1 flings BBs at 430 fps and 1400 rounds per minute. This modern take on an all-time classic comes with a 28-round removable magazine and a foldable/adjustable buttstock to give the shooter the ultimate in look and feel. Get ready to experience the fun that only a full auto BB gun can provide! - Fully-Automatic CO? Powered BB Air Rifle - Fires BBs up to 430 fps and Over 1400 Rounds Per Minute - Full Size Real Feel Dual Action With a Durable Synthetic Design - 28-Round Drop out Magazine Holds Two CO? Cartridges and Spring Feeds BBs for Rapid-Fire Action - Adjustable and Foldable Buttstock With Quad Mounting Rail System - Platform Compatible Stock Tube and Pistol Grip - Caliber: BB - Powerplant: CO2 - Steel BB Velocity: Up to 430 fps - Action: Full/Semi-Auto - Product Weight: 8 lbs - Barrel Material: Steel - Barrel Type: Smooth Bore - Buttpad: Adjustable - Front Sight: Fixed - Rear Sight: Removable/Adjustable - Material: Nylon Fiber - Mounting Rail: Picatinny - Stock Style: Adjustable - Stock Material: Nylon Fiber - Safety: Selector