The AR Twelve Shotgun is a gas-operated, semi-automatic shotgun designed to look and function similarly to the AR15/M16 rifle. The AR-12 is very light, ergonomic, magazine fed shotgun. Unlike most other 12 gauge Tactical shotguns in the U.S. the AR-12's magazine release button and manual safety mimic the M16 rifle location. The top of the receiver has an integral picatinny rail for mounting rear sights, optics, or accessories. The AR-12 barrel can be very easily removed and the upper receiver is manufactured from an aluminum alloy, while the lower receiver, pistol grip, and stock are manufactured as one piece from impact resistant polymer. The AR Twelve is a semi auto Tactical shotgun and works best with Hi powered loads like Buck shot , Slugs or duck loads. May not function well with bird shot or trap loads. Features4140 Steel barrel5rd MagazinePicatinny Rail