Choate mount?
Drill and tap receiver to mount.
Looks like a generic receiver cover type mount, although slightly less cheap looking, I think it may be the Weaver model.
It's not Choate's or Weaver anybody else want to throw a dart at the dart board.
I have used UTG #T642
It will require a slight file to fit.
http://www.steelcityarmory.com/sks/utg-3rd-gen-sks-high-profile-see-thru-mount-with-1-rings.html
The ATI one seems to have a radius under the picatinny mount, UTG is a straight cut
I had to file, test fit, file a bit more, fit....it was nice and tight.That one looks good too, did it stay tight to the gun?



























