When every second counts, the Mossberg 930 Tactical is the proven, clear choice. This autoloading shotgun features a dual gas-vent system, ported barrel. The Mossberg 930 Home Security is a great option for a home defense shotgun. This model is semi-automatic with a 7 shot tube giving you 8 rounds if you top the tube off with a shell chambered. The barrel is a full cylinder bore and the receiver is drilled and tapped for an optics mount. The barrel is 18.5″ long and features a 3″ shell chamber length. The receiver and barrel are matte blued, and are set in a synthetic stock for maximum durability.