Any decent machine shop can
do that easily. Probably better
to. Most shops have at least
2-3 lathe operators that cut
different threads for a full time
living. All day long.
I just don't agree with this at all. In the first place, a gunsmith must have a Federal Firearms License to legally work on a firearm. Your average machine shop won't have one. The machinist must know how to protect the rifling at the crown. If he simply rides the muzzle on a live center, he will destroy the accuracy of the barrel. Does the machine shop understand how to remove the barrel or have a mandrel to use in the receiver to hold it in absolute alignment so that the bullet won't contact the suppressor on the way out of the muzzle?
Do yourself a favor and use a licensed gunsmith to thread your barrel.
Bill Jacobs
Gunsmith
No sir. I got 2 bull/target barrels that need some attention.22 with an already threaded barrel?