Multi-Purpose Oil - 6 oz. Aerosol Ballistol, the amazing multi-purpose lubricant has many uses. From cleaning, lubricating and protecting firearms and knives, to oiling and restoring leather. Description: Cleans and removes all types of bore fouling Minimize the need for brushing Forms a protective film on your firearm Neutralizes and dissolves black powder and corrosive ammo residue Beautify gun stocks, and prevent them from drying out Will never gum up or harden