Expanding foam formula fills the bore to attack copper and powder fouling without harsh scrubbing. Contact with copper turns the foam blue, so you can easily see when the copper is removed. Non-corrosive, contains no ammonia, and not harmful to skin....
Electrochemically removes the last speck of lead or copper from any firearm bore. Leaves even rough or pitted bores sparkling clean. Copper and lead deposits are stripped from the bore electronically and deposited onto the FOUL OUT III stainless steel...