Federation Firearms SA-4 ShotgunThe Federation Firearms SA 4 is a 12ga semi automatic shotgun featuring a dual piston gas system and adjustable synthetic stock. With an 18. 7" barrel and 3 chokes, this shotgun is designed for reliability and accuracy. The black finish provides a sleek and durable design. This shotgun is ideal for hunting and target shooting. The SA 4 is a high quality firearm that is built to last, with a focus on performance and durability. Caliber 12ga Barrel