Contact info for him? I also have a rifle that needs threaded and the Heights is very close.all my 1911 work goes to herman muschke(sp?)in the heights. he does a lot of hpd work and developed a part for 1911's himself.
i disremember what part it was but i've seen it in brownell's catalog.
he's reasonable.
If you can send just a barrel - and no receiver - I can do it for, and charge less than $60.