Designed to fit SHT-035 and SHT-057. Securely mounts on your stock to hold an additional 5 shot shells. Screws are included. New interchangeable components fit most popular 12 gauge pump shotguns, Remington 870, Mossberg 500, Winchester 1200, Winchester 1300, Defender and Maverick. Constructed of indestructible black polymer nylon. Easy to install, no modifications or gunsmithing required. Includes an Unconditional Lifetime Warranty.