Brownells 11-Degree 41 Caliber Barrel Chamfering Plug Gauge

The Brownells 11-Degree 41 Caliber Barrel Chamfering Plug Gauge is a precision gunsmithing tool used to verify and measure the chamfer angle at the chamber mouth of pistol barrels. Designed for universal handguns chambered in .41 caliber (.410–.412), this plug gauge ensures the correct 11-degree chamfer is applied during barrel fitting and preparation. An essential quality-control tool for gunsmiths performing barrel work.