Has anyone personally done this or had it done and how did it turn out? I'm not enamored with the 22/45 LITE but would like to have a pistol with threaded muzzle. I have a spare slabside 4" and heavy round 5.5" and have been contemplating having this done. One guy says he can do it attached to the receiver w/o problem. I understand this would be preferable to trying to remove the barrel.