Great finish, very "close" fit. First one I received was difficult to get threads engaged so I requested a replacement. It was also very tight so I checked threads with measuring tools and they were correct. Used some threading oil and worked it onto the barrel with the nut wrapped in a shop rag and a pair of pliers. Got the nut installed and it looks great. Still a bit tight but that is OK, pretty sure you don't want this thing falling off in the middle of a good burst.
Reviewed by: Chuck Parsons from SE USA on 1/18/2022