Does anyone have an idea of the going price to drill and tap a Ruger MK II 22/45 ?
You reaslly don't have to as there are bases made to fit your barrel, that require no matchining. Last time I checked, there are about four different makes that you can buy. Weaver, Burris and B-Square for starters. I own all three and they work great. I have a forth that I have not been able to identify. The lower part of the mount, replaces one of the grip panels and extends up to a Weaver style base. ....
Be Safe !!!