Viper G2 PRO Sporting 3 gas operated semi-automatic shotgun that allows you to shoot light target loads to heavy pheasant loads. Shim kits standard. Removable choke system that uses Beretta/Benelli Mobil threads includes four extended choke tubes (SK IC M F) choke box and choke wrench. TriStar Select Turkish Walnut stock and forearm with cut checkering and semi-gloss finish. Adjustable comb raised target rib middle bead (Only for Item#24160) fiber optic front sight and shim kits standard. Rubber recoil pad backed with a five-year mechanical warranty. – Features: – Manual E-Z Load Magazine Cut-Off – Raised Target Rib w/ Matted Sight Plane – Fiber Optic Sight – 5 Round Magazine Shot Plug Included – Quick Shot Plug Removal – Chrome-lined Chamber and Barrel – Adjustable Comb (Wood Only) – 4 Extended Beretta/Benelli Mobil Style Choke Tubes (SK IC M F) – Shim kits standard