XDefense Semi-Automatic Shotgun features Auto-Regulating Gas- Operated (ARGO) system: a simple self-cleaning piston-driven action. The unique short-stroke dual-piston design has a gas ported located just forward of the chamber resulting in less fouling and more reliable cycling. Pistons push directly against the bolt for faster operation and minimal vibration. This eliminates any extra weight from any connecting linkages or heavy action bars under the forend. – Gauge 12 – Barrel Length 18.5 – Type Semi-Automatic – Chamber 3 Red – Choke 5-piece set w/wrench – Safety Manual – Receiver New Receiver Design Red line – Stock Type Pistol Grip Skeleton Stock – Butt Plate Rubber – Front Sight Ghost Sight – Picatinny Rail on Receiver and Barrel Yes – Fast Loading Yes – Extended Bolt Handle & Release Button Yes – Red – Ported Barrel Yes – Magazine Capacity 5+1