No Jamming! Designed not to overlap the shotguns receiver when cycling the pump action. Eliminates the chance of momentary jam by a sling, clothing or other material catching between the standard forend and the receiver. Features recessed, pebble-grain textured area which reduces the chance of hand sliding from grip. Adapters included. Fits models: (Mossberg 500/590,) (Remington 870) (Winchester 1200, 1300).