Slip 2000 4oz Copper Cutter 60218Description/Product Information:Copper Cutter is specially formulated to remove: copper, lead, powder residue and plastic wad fouling from bore surface with very little scrubbing.Always Relubricate After CleaningCopper Cutter is a Water Based - Ammonia Enhanced product and it will remove all lubrication or oil protection. Care should be taken to re-lube all parts cleaned with Copper Cutter to rusting. Always follow up with a Slip 2000 Gun Lubricant to displace any moisture left behind from cleaning. This will not only protect your weapon but it will reduce your next cleanup time.