Easy & Fast, One-Step Gun Cleaning Solution
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. Contains no ammonia. Convenient spray tube directs foam directly into the bore with no overspray.
Big Book Catalog, Issue:68, Page:345
SPECS: Aerosol foam, 3 oz. (85g) or 12 oz. (340g) can.