My Mk II was bought in 1994 to the best of my knowledge. The MK IIs that I have seen with scope mounts are the stainless slab sides. They have the normal ruger style rings. I do believe that some of the newer MK IIs come with drilled and tapped holes but i cannot swear to it.
This is the mount I found and used on my 6 7/8" gvt MK II. It's the one that covers the rear sight area of the receiver.
http://www.jackweigand.com/rm2fd.htmlIt works pretty well though i did have to do some minor fitting to the insert that slides into the rear sight dove tail slot. I toped it off with a tasco red dot and it suits my needs just fine.
Good luck and be safe,
Scott