Wilson Combat Upper Cleaning Tool Replacement Pads w/4 Pack White. Simply use the solvent of your choice on the cleaning pads attach to the tool (sold separately in the link below) and run through the upper receiver to remove caked-on firing residue deposits. Cleaning pads are reusable and can be washed in warm water. Reusable pads Compatible with AR-15 or AR-10 Click here for cleaning tool (TR-UCT) Specifications for Wilson Combat Upper Cleaning Tool Replacement Pads: Manufacturer: Wilson Combat Color: White Features of Wilson Combat Upper Cleaning Tool Replacement Pads A 4-pack of reusable cleaning pads for the Wilson Combat AR Upper Cleaning Tool. Package Contents: Wilson Combat Upper Cleaning Tool Replacement Pads Wilson Combat TR-UCTP: Upper Cleaning Tool Replacement Pads w/4 Pack White