DB TAC 1/2''x 28 TPI Thread Protector Aluminum Black Color 1/2-28 TPI Thread

Came as described but took way too long to arrive, with so many on Amazon I would probably order from someone else next time.

So So quality big and bulky will not use or buy again. Fitmit is tight and you have to work it onto your barrel. I tried it on different ones some it fit tighter than others.

Works well on Beretta 92FS. But seats too deeply on Sig Sauer P938 blocking the slide from returning to battery.