Bore Tech Cu+2 Copper Remover 16 Oz. It extracts any copper fouling in your firearm bore. This cleaner contains a rust-preventable that shields and conditions the firearm bore. It is ideal for steel stainless steel or lined barrels. Specifications for Bore Tech BTCU-26016 Cu+2 Copper Remover 16 Oz: Manufacturer: Bore Tech Quantity: 1 Gun Type: Universal Fabric/Material: Multiple The Bore Tech BTCU-26016 Cu+2 Copper Remover 16 Oz is a quality addition to the Bore Tech lineup. For more great deals on Gun Cleaning Solvents by Bore Tech please browse our Bore Tech Gun Cleaning Kits page.