Commando semi-automatic shotguns are designed around the latest inertia technology. This allows for reliable function with any load from the 1 oz. field loads to the heaviest 3 magnum. Yet at 6 lbs the semi-autos are light enough to carry comfortably all day. When used as a defense gun this shotgun will give the same reliable function when using any kind of buckshot or slugs. - Action: Inertia - Capacity: 4+1 - Gauge: 12 - Chamber: 3 - Barrel: 18.5 - Choke: Muzzle Break - Accessories: Marine Body Tactical Pistol Grip Stock Picatinny Ghost Ring Sight - Weight: 6 lbs.