Federation Firearms SO-20, 20ga 3″ over/under shotgun, walnut stock, black receiver, 28″ barrel.The Federation Firearms SO 20 is a 20gauge over under shotgun featuring a 3inch barrel configuration and a 28inch barrel length. It combines a walnut stock with a blackfinished receiver for a classic appearance. The shotgun includes five interchangeable chokes for versatile shooting performance. Designed for reliability, the over under action offers smooth handling and quick followthrough. The barrels 28inch length provides balanced swing dynamics.