The Mossberg Model 590A1 Special Purpose 51660 is a shotgun designed for optimal performance and reliability. With a caliber of 12 GA, it is capable of handling a wide range of shooting applications. The shotgun features a magazine capacity of 2.75 rounds, with an additional 8+1 rounds. One of the notable features of this shotgun is the inclusion of a metal trigger guard and safety button, ensuring durability and a smooth shooting experience. Additionally, it is equipped with sling swivel studs and has a length of pull of 13.875, allowing for comfortable and convenient handling. Manufactured by Mossberg, a trusted name in firearms, the Model 590A1 Special Purpose is a pump-action shotgun. The receiver is parkerized and drilled & tapped, providing a solid and reliable foundation. The finish of the shotgun is parkerized, giving it a sleek and durable appearance. The stock of the shotgun is made of black synthetic material, offering a comfortable grip and enhanced durability. The sight is a bead sight, providing a clear and reliable aiming reference. The safety is ambidextrous tang safety, allowing for easy and convenient access from either hand. The chamber of the shotgun can hold up to 3 rounds, and it is equipped with a cylinder bore choke. The butt plate is made of black rubber, providing a comfortable recoil absorption. The barrel length is 20 inches, with a heavy wall design for improved durability and accuracy. Overall, the Mossberg Model 590A1 Special Purpose 51660 weighs 7.25 lbs and measures 41 inches in length. It is a highly reliable and versatile shotgun suitable for a variety of shooting purposes.