I have looked, that reciever cover is too thin to do any drill and tap. only other way to do anything with is take small metal plate, work it into an useable shape, drill and tap for both mounting to the reciever and for scope mounts. which makes another problem in it self, stablelizing the plate. which will bring the locking studs into play. I have been looking for replacement screws for due to I do not like the ones that are on it, I can not find any that will fit yet.
needless to say, I have gave up the project. I got time on my hands but I don't feel like going insane doing it.
btw, thanks for reminding me, I need to get more ammo for the gun