The Mossberg 930 SPX is a tactical semi-auto shotgun with an 18.5-inch cylinder-bore barrel, M-LOK forend rail, and ghost ring sights. It provides semi-auto speed for home defense and competition use at a price well below comparable semi-auto tactical shotguns. Type: Semi-Auto Shotgun Action: Semi-Automatic Caliber: 12 Gauge Capacity: 7 Year introduced: 2006, USA Weight: 7.75 oz Overall length: 38.5" Status: Active Intended use: Home Defense, Tactical, 3-Gun Competition