Mossbera 930 Tactical - 8 Shot SPX Semi- Auto Shotqun -All Mossberg 930 Special Purpose shotguns feature a self-regulating gas system that vents excess gas to aid in recoil reduction and eliminate stress on critical components. All 930 autoloaders chamber both 2.75-inch and 3-inch 12- gauge shotshells with ease from target loads, to non-toxic maqnum loads, to the latest sabot slug ammo. Magazine capacity is up to 7+1. This 930 has some nice upgrades like the Mesa Tactical Urbino Pistol Grip Stock and the Elite Tactical Advantage Forend Rail.