AR15 barrel thread pitch? *found it*

[peckerwood]

What is the thread pitch and thickness of the AR15 barrel at the chamber? Specifically with the locking lugs removed...what is the thread per inch(and thickness) of those threads?

I have already posted this question in Black Rifles with no response so far.



EDIT...Kevin B found it for me... http://www.shilen.com/ar15Barrels.html

13/16-16 UN THD