Real Avid Gun-Max Gun Oil Liquid is a gun-metal-grade formula for a high performance, long-lasting protection against corrosive elements. Gun-Max was engineered to even excel in harsh environments. Gun-Max is an impenetrable moisture barrier even displaces moisture further dividing your firearm and those nasty elements that bring rust and corrosion to the firearms you love. Anti-friction additives bond to metal parts for longer-lasting lubrication of your moving metal parts. Maximize protection and performance even on semi-auto firearms with high-cycle rates. Gun-Max is also designed to work in sub-zero climates for those looking for an oil that can handle harsh winters and maintain weapon functionality. 4 oz. bottle. Gun Oil Rust and corrosion protection Lubrication displacement Anti-friction additives Functions in sub-zero climates