Callfire@Boresnake Bore Cleaner 40/41/10MM Pistol Clam Pack his unique product cleans a bore in less than 10 seconds With a single pull, you'll have a barrel that is shiny and clean. Its integrated bronze brush effectively loosens hard fouling and lead It has 160 times more cleaning area than a standard patch, which makes for a cleaner bore in less time A great product to use at home, at the range or in hunting camp