Action: Semi-Auto Shotgun - System: Gas Operated - Gauge: 12 Ga. - Chamber: 3 inches - Stock: Tactical Stock with pistol Grip - Receiver: Lightweight Aluminum Alloy - Barrel: Stainless Steel. Inner surface is hard white chrome plated outer surface is black chrome plated - Sight: Fiber Optic Sights - Barrel: 20 inches - Choke:Cylinder choke - Magazine: 4+1 - Length: 41.73 inches - Weight: 6.62 lbs.