Crosman AK1 BB Full Auto Air Rifle - 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. It also comes with a 28 round removeable magazine and a foldable/adjustable buttstock to give the ultimate look and feel. Full-Size Reel Feel Dual Action Platform Compatible Stock Tube And Pistol Grip