This 12-gauge semi-automatic shotgun, has a short recoil system. Features synthetic stock, with matte black finish and lightweight alloy receiver. Available in two basic configurations: Field Grade choice of 24", 26" and 28" ventilated rib barrel with screw-in chokes; Riot Model with 18" plain cylinder choked barrel and full or pistol-grip-only stock (introduced in 1993). Weight: Field Grade about 6 lbs. 12 oz.; Riot Model about 6 lbs. 5 oz. NOTE: Add $40 for Riot Model with pistol-grip; $75 for Riot Model with Tritium sights; $100 for ghost ring sights.