The TriStar Viper series is a semi-automatic gas operated shotgun that is reliable functional and hard working. Its removable choke system uses Beretta/Benelli Mobil threads includes three choke tubes (IC M F) choke box and wrench. The Viper also features manual E-Z load mag cut-off vent ribbed barrel with matted sight plane & fiber optic front sight and chrome-plated chamber. A shot plug is included. This 12 gauge G2 Sporting model has a 30" barrel and a semi-gloss Turkish walnut stock and forearm.Features: Action: Semi-Auto Barrel Length: 30" Capacity: 5+1 Sights: Fiber Optic Front Hand: Right Safety: Top Tang Chamber: 3" Gauge: 12 Gauge Weight: 7.25 lbs Choke Configuration: MobilChoke Stock Description: Fixed w/Adjustable Comb Chokes Included: FICMSK Extended Barrel Description: Vent Rib Chrome-Lined Barrel Length Range: 30" to 30.99" Weight Range: 7 lbs to 7.99 lbs Stock Finish Group: Brown