SilencerCo Thread Protector .578x28

When transporting your firearm or waiting on ATF approval, keep your threads crisp and protected with a thread protector. Careful not to cross-thread, simply twist the thread protector on the end of your barrel to prevent dust and debris from clogging your threads when no silencer is in use.Available in .578 X 28 and 1/2 X 28.578 X 28 is compatible with most US-made 45ACP