Otis Ultra Bore Solvent (1-Gallon) All-in-one cleaner, lubricant and preservative Stops rust and corrosion for long-lasting protection Penetrates into tight fitting areas for easy disassembly of parts Seals out moisture with a thin film lubricant reducing surface friction Removes carbon, gun powder, dirt and grime from metal surfaces Cleans lubes and protects Stops rust and corrosion Seals out moisture Penetrates into tight fitting areas Removes carbon and powder