Mossberg 95035 M500 Shotgun Stock is a black synthetic fixed stock with integrated magazine tubes built into both sides of the buttstock, storing 4 extra rounds of 12 gauge ammunition under spring tension for quick tactical reloads. Fits Mossberg 500, 535, 590, 590A1, 590M, 835, and Maverick 88 models. Features a rubber butt pad and a 13.88 length of pull. Installs using a standard stock bolt. Safety note Follow all manufacturer installation instructions. Verify proper function and secure mounting before use. Comply with local firearm laws and regulations.