Penetrating Oil with MOS2 is a modern and extremely effective cleaning product which contains molybdenum disulphide. Thanks to its strong cleansing properties it easily reaches even the most difficult areas of the firearm. It removes any residue built during firearm usage. It also dissolves sediments of brass, tambac and gunpowder. The addition of molybdenum disulphide prolongs firearm life by decreasing friction between its elements. Product is characterized by a very high resistance to oxidation, thanks to which it is able to effectively protect metal surfaces.