Gunsmithing Barrel thread and shoulder machining?

[longshot2000]

Trying to be polite. Take it to an actual gunsmith this time around. This guy does not know what he is doing. Might be learning, but should not be working on other people’s guns.

I am. It sure why this is true over and over again. Seems a lot of armorers and gunsmiths have little competence.

I had a customer tell me that since a new barrel had a barrel nut but no delta ring, his local gun smith had to remove a pinned flash hider and FSB to install a three-piece delta ring. Guy was kissed at my shop

 

[mi650]

Threads like this are why I haven't had my XR-100 threaded. It's the only rifle I have that I shoot unsuppressed.