Tipton Best Bore Cleaner rapidly dissolves stubborn carbon build-up and copper fouling in one time-saving step. The 100% ammonia-free, odorless formula is non-corrosive and safe for all metals and finishes. Use it alongside Tipton's Best Gun Degreaser and Best Gun Oil for a complete cleaning system that makes professional-level firearms maintenance easy. Made in USA 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