Easily Removes Built-Up Lead
Exclusive, MT-10 metal treatment strips lead deposits from rifle, handgun and shotgun bores without hard scrubbing. Chemical action gets beneath the lead and lifts it away from the steel without prolonged soaking. Caution; will damage some paint, varnish and plastics.
AR-15, Issue:04, Page:074
Big Book Catalog, Issue:71, Page:346
Sinclair, Issue:5B, Page:144