Converting a .30 to a 9mm

[Lugerdoc]

I doubt that Rich's 3 minute change include set up tome, a chamber ream (if necessary -- which it is on all Numrich barrels), test firing, polishing feed ramps, etc. Also quite often, the barrel supplied does not want to screw in tight at "top dead center" and the flange will have to be turned down. We're now up to a few hours. TH