Carlsons 00066: Graphite coating for long lasting performance in your autoloader for use with: Remington Model 1100, 11-87, Pro Bore Guns, G-3 models, Beretta shotguns, Winchester shotguns, Franchi shotguns, Tri Star shotguns, EAA shotguns, and many other shotguns that use a gas o-ring. For 12, 20 and 28 gauge.
