Stevens 555 Sport, Over/Under Shotgun, 12 Gauge, 3 Chamber, 30 Ported Barrel, 5 Extended Choke Tubes - F,IM,M,IC,C, Matte Finish, Black, Walnut Stock 18748 Get world-class performance in an over-under at an affordable price. The Stevens 555 is light and handles fast, thanks to a lightweight aluminum receiver. It is also loaded with features, including a stylish Turkish walnut stock and chrome-lined, 28-inch carbon steel barrels.