Does finishing the AR receivers require a mill? Can it be finished by a "hobbyist" using a drill press? I can read a print, have mics. and calipers and dial gauges, etc. but I don't have, or have access to a mill. It does not say exactly what would be required to finish it. It just says "adjustments"! Is the area for the trigger/hammer group finished, or would that need to be milled? Any help appreciated! I don't want to wind up with a "conversation piece".
Thanks!