If you own a modern high-performance gun, then it deserves a high-performance treatment like Hoppe's Black Copper Cleaner. This formula is specifically designed for Modular Sniper Rifles and other high-volume shooting machines, but it will also clean and protect any of your other firearms. Hoppe's Black Copper Cleaner is a superior gun cleaning formula that's engineered to remove stubborn copper fowling from any gun's bore. 4-oz. bottle. Manufacturer model #: 233605. Superior formula engineered to remove copper fowling Specifically designed for Modular Sniper Rifles Ideal for modern high-volume shooters Will clean and protect any firearms