The Mossberg 930 is a gas-operated semi-automatic shotgun with a 26-inch vent-rib barrel designed for field hunting. The self-regulating gas system handles a wide range of loads from light target to heavy magnum shells without adjustment. Type: Shotgun Action: Semi-Automatic Caliber: 12 Gauge Capacity: 4 Year introduced: 2005, USA Weight: 7.5 oz Overall length: 45.5" Status: Active Intended use: Field Hunting, Sport Shooting