Winchester Repeating Arms SX4, Waterfowl, Semi-automatic, 12 Gauge, 3, 28 Barrel, Mossy Oak Bottomland Finish, Synthetic Stock, 4Rd 511212392 Gas-operated autoloading shotgun with lightweight aluminum alloy receiver. Mossy Oak Bottomland camouflage finish. Barrel has chrome-plated chamber and bore and ventilated rib. Larger bolt handle, bolt release and reversible safety button. Includes three choke tubes, TRUGLO fiber-optic sight, Inflex Technology recoil pad and sling swivel studs.