The Mossberg 930 with 28-inch barrel is the most popular field configuration, offering extended sight radius and muzzle weight that improves swing-through for upland and waterfowl hunting. The longer barrel also provides marginally higher muzzle velocity. Type: Shotgun Action: Semi-Automatic Caliber: 12 Gauge Capacity: 4 Year introduced: 2005, USA Weight: 7.7 oz Overall length: 47.5" Status: Active Intended use: Field Hunting, Waterfowl