Gun Butter has proven performance since 2003 in competitive, Law Enforcement, and Military applications in extreme weather. Gunbutter 2/3 fl oz. Gun Butter is an exotic blend of the finest lubricants available today. Specifically designed for: Break-in protection and durability. Cling ability (film strength) to maintain its placement. And enhanced lubricity to allow superior performance in all weather extremes; Heat - will not burn up in a jet engine. Cold - unabated in freezing conditions Wet - stays intact during pouring rain Dry - repels dust and airborne sand Consistency in all weather extremes Needle oiler provided for precision application Yield roughly 50,000 rounds Not a grease, it's an oil.