Butch's Bore Shine is a non-abrasive chemical solvent specifically designed to remove all forms of bore fouling including copper with an absolute minimum of effort and no damage. It will quickly remove carbon build-up, even in difficult to clean areas like the chamber throat. It also removes lead, wax and even plastic shotgun wad build up. Size 16 oz Type Bore Cleaner Series Bore Shine Material Multiple Protects Against Copper Build Up Quantity 1 Suitable For Firearms