The Adco International Aselkon Red Stone is a 12 gauge semi-automatic shotgun with an 18" barrel. The combination of a semi-automatic action and an 18" barrel make the Redstone a perfect contender for home-defense, competition use, and more!Specs:12 GaugeChamber: 3"Capacity: 4Barrel Length: 18"Mechanism: Kinetic Energy, rotary head inertia systemBody: Aluminum anodized / Nickel platedStock: SyntheticSafety: Trigger SafetySight: Fiber optic rear sight5 Choke Tube Set included