The SX4 Waterfowl Hunter Woodland combines the reliable, fast cycling, soft shooting performance of the Active Valve Gas System with the time-honored concealment of Woodland camouflage. From flooded timber to marsh cattails, Woodland camouflage is suited to a wide variety of environments. The chrome plated bore and chamber will protect your shotgun from the nastiest environmental elements and from steel shot. The SX4 is built on the super fast, extremely reliable Active Valve Gas System that was the core foundation of the SX3. Winchester built on that solid operating mechanism and improved the balance, controls, and internal operating components of the SX4 to make it a worthy successor to the SX3.