Slim, ergonomically designed pistol grip for maximum control, a recoil pad and sling swivel stud. Uses factory stock bolt. Non-slip pebble grain grip area for better control. Made of matte black, glass-filled nylon. Mounting hardware & adapters included. Made in USA. Lifetime Warranty. No gunsmithing. SPG0100 fits: 12/20GA Mossberg 500/535/590/835, Remington 870, Winchester 1200/1300 and Maverick 88. SPG0200 fits: 12 GA Remington 1100/11-87 Shotguns.