This cleaner is formulated to rapidly and effectively remove stubborn carbon build-up and dissolve copper fouling in one time-saving step. The 100% ammonia-free, odorless formula is non-corrosive and is safe for all metals and finishes. Use in conjunction with the other Tipton Best 1-2-3 cleaning products; Best Gun Degreaser and Best Gun Oil. Tipton's Best cleaning products make professional firearms cleaning easy.? It's not clean until it's Tipton clean. Works with all firearms Custom formula rapidly dissolves copper and carbon fouling in one easy step Odorless Ammonia-free, non-corrosive formula is safe for all steels and finishes 4 oz bottle with dispenser cap Made in USA