The TriStar Viper G2 Series semi automatic gas operated shotguns are reliable, functional and hard working. The shotgun’s gas system allows for the use of both standard and heavy loads, and it comes with a removable choke system that uses Beretta/Benelli Mobil threads. Includes three choke tubes (IC, M, F), choke box, and wrench. Additional features include a synthetic stock, rubber recoil pad, fiber optic front sight sight and 5 round magazine capacity.