The Stevens 320 Security is the home defense configuration with an 18.5-inch cylinder-bore barrel, heat shield, and pistol grip stock. Ghost ring sights. One of the least expensive defensive pump shotguns available. Rotary bolt action. Type: Pump Shotgun Action: Pump-Action Caliber: 12 Gauge Capacity: 5 Year introduced: 2014, USA Weight: 6.25 oz Overall length: 38.5" Status: Active Intended use: Home Defense, Tactical