TriStar 26131 Viper 12 Gauge Semi-Auto 3" 5+1 28" Overall Mossy Oak Shadow Grass Habitat Vent Rib Barrel, Aluminum Receiver, Fixed Mossy Oak Shadow Grass Habitat Synthetic Stock The TriStar Viper pairs 12 gauge chambering with a 28-inch barrel and camouflage synthetic furniture. Its semi-automatic action is paired with a 3-inch chamber and a stated 5+1 capacity. The Mossy Oak Shadow Grass Habitat appearance is a defining detail of the configuration. The vent-rib barrel provides a defined sighting plane along the top of the barrel, an important visual feature when evaluating a shotgun's sight arrangement. Mossy Oak Shadow Grass Habitat is the named camouflage treatment, carried across the exterior described for this configuration. The synthetic stock and aluminum receiver provide separate construction details beneath the overall patterned appearance. Key Features Semi-Automatic Action: The stated operating format for this shotgun. Barrel Configuration: 28-inch barrel with a vent rib. Furniture: Camouflage synthetic stock configuration. Chamber and Capacity: 3-inch chamber with 5+1 stated capacity. Specifications Manufacturer: TriStar Model: Viper Gauge: 12 Gauge Action: Semi-Automatic Barrel Length: 28 inches Stock: Camouflage synthetic Appearance: Mossy Oak Shadow Grass Habitat Chamber: 3 inches Capacity: 5+1 Receiver Material: Aluminum Shop the TriStar Viper 12ga 28-inch Habitat shotgun at BattleHawk Armory.