Companies that make 1911 threaded barrels?

[x007x]

Hello, I am looking for a company that makes a 1911 4" stainless threaded bull, bushingless barrel. I know of Storm Lake, Jarvis, and Lone Wolf. I am in the process of contacting them to see if they make this specific barrel.
I was wondering if any of you know of any other companies that can do this. Thank You.

[JCole]

Maybe Bar-sto?