TriStar 24143: The Tristar Viper G2 semi-automatic shotgun allows you to shoot light target loads to heavy waterfowl loads. Removable choke system that uses Beretta/Benelli Mobil threads, includes three choke tubes (IC, M, F), choke box and choke wrench. Highly durable injection molded stock and forearm coated with Soft Touch finish for better feel. Features- Manual E-Z load magazine cut-off, Rubber recoil pad, 5rd magazine shot plug included, swivel studs and a Shim kit.