This AR Style, 12 ga. gas operated semi auto shotgun features a 3 chamber, 19.5″ smooth bore barrel, door breacher style muzzle brake, polymer fore end with picatinny rail sections, pistol grip butt stock, rear sight/carry handle, and two magazines (2-and 5- shell). The two piece fore end is easily removed for quick and easy access for cleaning. Magazines Guaranteed compatible with Rock Island Armory VR80, VR60, VRBP-100, Panzer Arms AR-12, AR-12 PRO and BP-12, MKA 1919, BR-99 and FR-98/99 Shotguns.