1 Step CLP in a cotton flannel cloth makes it fast and easy to wipe down gun metal. Excellent for the outside of your firearm, burnt powder residue, or metal gun parts to remove fouling/residue. Cleans fouling materials from firearm moving parts, AR Bolt Carrier Group, and firearm exterior metal. Protects again corrosion and 1 Step CLP is a superior synthetic formula that will not break down under extreme temperatures or pressure. For a true 1 Step Solution to service and preserve your firearm, use the Pro-Shot 1 Step CLP cloth.