OK. Before responding, please read this post so that you are answering the correct question. 
On an Armalite AR10 barrel, the barrel extension thread is 1"-16 3B. What I am looking for is: How long is the threaded section that the barrel extension is screwed onto?
I am not looking for the barrel nut thread size. I am not looking for the muzzle thread size.
I think it is 1.300" long from breech face to shoulder. If someone could confirm that or even provide a length tolerance, that would be awesome.
Thanks.
On an Armalite AR10 barrel, the barrel extension thread is 1"-16 3B. What I am looking for is: How long is the threaded section that the barrel extension is screwed onto?
I am not looking for the barrel nut thread size. I am not looking for the muzzle thread size.
I think it is 1.300" long from breech face to shoulder. If someone could confirm that or even provide a length tolerance, that would be awesome.
Thanks.