Brownells .578"-28 Semi-Auto Pistol Compensator Tap

The Brownells .578"-28 Tap is a precision gunsmithing threading tap designed for cutting .578"-28 threads, the standard thread pattern used for semi-auto pistol compensators and muzzle devices. Ideal for gunsmiths threading pistol barrels to accept compensators, suppressors, or other muzzle attachments. Ensures accurate, clean threads for a secure and properly aligned fit.