Hoppes HBCC Black Copper Cleaner Removes Copper Fouling 4 oz. Bottle

Hoppe's Black High-Performance Copper Cleaner is formulated with high round count firearms in mind but is suitable to use on any firearm bore. This copper cleaner is a superior formula engineered to remove high amounts of stubborn copper fouling from any firearm bore after a long day out at the range. Step two of the Hoppe's Black Five Step Cleaning System.