Brownells .40/10mm Muzzle Brass Pilot

The Brownells .40/10mm Muzzle Brass Pilot is a precision-machined brass guide designed for use during barrel and bore work on .40 S&W and 10mm caliber firearms. It fits into the muzzle end of the barrel to center and guide cutting or lapping tools, helping ensure accurate, aligned work. Made from brass to protect the bore from damage. Compatible with barrels chambered in .40/10mm (.400-.401 diameter).