A micro-fine bore cleaning and finishing compound that works as both a cleaner and a final polish to help keep barrels free of fouling and shooting their absolute best. Regular use gives your barrel a mirror-like finish that helps prevent the build-up of accuracy robbing copper fouling, plus greatly reduces cleaning effort. As a bore cleaner, the soft, oil-paste formula liquefies as you use it to quickly remove fouling, copper, lead, and powder residue in rifles and handguns, plus plastic deposits in shotgun bores. Because J-B Bore Bright is absolutely non-embedding it wipes easily from the barrel with a dry patch. You never need to worry about Bore Bright harming your barrel.