Gun cleaning made simple. 3 easy steps to clean your firearm: dissolve, clean and protect. First, use Bore Scrubber® to dissolve copper fouling and residue left behind from firing your firearm. Second, clean out the dissolved material with Gun Scrubber®. And, third, cover with Barricade® to protect your firearm from rusting. Please note: This item cannot be shipped to an address within the State of California.