Originally Posted by
badmutha6
I'm not quite sure I understand the question. The barre comes threaded to add either a muzzle brake of your choosing or a suppressor. The thread protector just covers those threads on the outside of the barrel to protect them from getting marred during handling and it being on or off won't have any effect on accuracy. If the crown is damaged by some other means, yes it will but the protector isn't there for that. The best bet is to get a foot brake and that will protect the crown.