- Tactical, dual action BB AR pistol - Fueled by two 12-gram CO₂ cartridges and delivers velocities of up to 400 fps - Intense 1400 round per minute rate of fire - 25-rounds drop out magazine, compatible with traditional 4.5mm steel BBs - Removable sleeve; covers an AR compatible buffer tube - Realistic weight, blowback action and functions, great for skill development, training and fun The Crosman Full Auto A4-P BB air pistol redefines recreational backyard fun! Fueled by two 12-gram CO₂ cartridges housed in the 25-round magazine, these air pistols sling BBs at a blistering 400 fps with an intense 1400 round per minute rate of fire! The dual action selector lets you choose between semi and full auto capability and features a quad accessory rail and removable red dot sight. This pistol has it all, get ready to experience the fun that only a full auto BB gun can provide!