The Mossberg Model 590A1 Special Purpose 51663 is a shotgun designed for reliability and durability. This pump action shotgun has a chamber size of 3 inches, allowing it to handle a variety of loads. The 12 GA caliber ensures powerful and effective shots. The Model 590A1 Special Purpose features a parkerized finish, which provides excellent corrosion resistance and durability. The receiver is also parkerized and drilled & tapped, allowing for easy customization with optics and accessories. Equipped with a 20-inch heavy wall barrel, this shotgun offers enhanced accuracy and stability. The barrel is complemented by ghost ring sights, which provide quick target acquisition and improved sight picture. The black synthetic stock adds to the shotgun's rugged appearance and is built to withstand harsh conditions. The metal trigger guard and safety button ensure reliable operation, while the ambidextrous tang safety provides added convenience. With a magazine capacity of 8+1 rounds and a weight of 7.25 lbs, the Model 590A1 Special Purpose is suitable for various shooting applications. The shotgun also features sling swivel studs for easy carry and transportation. Overall, the Mossberg Model 590A1 Special Purpose 51663 is a reliable and versatile shotgun that is built to withstand rigorous use. It offers excellent performance, durability, and customization options, making it an ideal choice for both professional and recreational shooters.