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

1/2 X 28 is compatible with most US-made 9mm