The Viper G2 series is built on a reliable gas piston action designed to cycle a wide variety of shells from target shot to heavy waterfowl loads. A tough ceramic coating on the action provides long-term corrosion resistance and easy maintenance. Standard on every model is a set of mobile-thread chokes, a cushioning recoil pad, stock shims, and a bright fiber optic sight ensuring a clear sight picture in a wide variety of environments. The Pro Sporting model is designed for competition and features overmolded surfaces on the grip and comb along with a striking blue receiver finish making it easily visible. This model is chambered in 12 gauge and features a 30-inch barrel and a 3-inch chamber. Four extended Mobil chokes are included (F, IC, M, S)