Whether you shoot recreationally or are on a mission to defend your home front, JTS shotguns are built with power, versatility and purpose in mind. Based upon the semi-automatic AR pattern, the MK12AR shotgun features a 4-position adjustable gas system for use with different loads. It comes equipped with a chrome lined barrel threaded for use with Rem Choke tubes, an aluminum forend with M-LOK accessory slots, a fixed AR-style buttstock and comes with (2x) 5-round box magazines. 12 GA Shoots 2 3/4"and 3" shells Picatinny Rail Chrome lined barrel 4-Position gas system for adjustments based on loads Fits Rem Choke tubes Comes with two 5 round magazines Barrel Length: 18.7" Overall Length: 37.99" Aluminum forearm with MLok Slots and Two Side Plates Removable Front and Rear Sights Comes with one cylinder choke installed