Self Loading Police 12 Gauge 18 Inch Barrel 3 Inch Chamber Adjustable Ghost Ring Rear Sight Synthetic Black Stock 6 Round. Aircraft-grade aluminum alloy receiver. Top-mounted one-piece Mil-STD 1913 accessory rail. Hard chromed bore and 3 inch chamber barrel. Matte black synthetic stock with checkered gripping panels. Premium non-slip recoil pad. Two steel sling swivel stude. Receiver mounted bolt release. Curved operating handle. Crossbolt safety on rear of trigger guard. Extended tube magazine with aluminum cover (six 2.75 inch shells or five 3 inch shells). High/adjustable rear sights and wing protected front sight.