Blended with lead and carbon removing agents to make quick work of fouled rimfire bores. Strips caked-on bullet lubricant and heavy leading from match barrels, as well as cowboy action guns that shoot a lot of soft, cast lead bullets. Leaves behind a protective, corrosion inhibiting film. Mfg: Bore Tech SPECS: 4 oz. (mL) or 16 oz. (mL).