The Mossberg 500 Home Defense ships with a synthetic stock, bead sight, and 18.5-inch cylinder bore barrel optimized for indoor defensive use. It is one of the most purchased home-defense shotguns in the United States. Type: Shotgun Action: Pump-Action Caliber: 12 Gauge Capacity: 5 Year introduced: 1961, USA Weight: 224 oz Overall length: 38.5" Status: Active Intended use: Home Defense