This shotgun forend nut removal tool is compatible with most pump action 12 gauge shotguns with removable forends. This shotgun forend nut removal tool includes two 4Mm Thick interchangeable acrylic shields. This Shotgun Forend Removal Tool Is All Steel Construction With Black Oxide Finish. Easily remove the forend from most Mossberg 500/590, Maverick 88, Remington 870 and Winchester Defender (1200/1300) shotguns and clones 12Ga only.