Used and recommended by major firearms manufacturers, Lucas Extreme Duty Gun Oil is specially formulated for high volume, high heat and friction firearms and was designed for full auto firearms, SBRs and suppressors as well as semi-auto rifles, shotguns and pistols. It offers superior burn-off, shock and heat resistance, unlike any other multi-purpose gun oil. A unique additive keeps the oil from running and migrating while the polymeric film protects from rust, wear and moisture and resists carbon, lead and copper fouling and dramatically reduces wear during all shooting conditions. Applying Lucas Extreme Duty Gun Oil to bores, bolt carriers and gas pistons makes clean-up of powder resid Mfg: Lucas Oil Products