SilencerCo AC1361 Thread Protector .45 ACP .578x28 Steel Black AR-Platform

The SilencerCo AC1361 Thread Protector is a purpose-built muzzle accessory for .45 ACP AR-platform barrels cut with a .578"x28 thread pattern. It threads onto the muzzle in place of a removed suppressor, muzzle brake, or flash hider to shield the exposed threads from impact damage, debris, and corrosion during transport, storage, and handling.