Still looks to me there's a cut ou there, starting at under the "3" in 7.62x39 going left... .
It does appear there is a faint line there on the right, but I think it would be much more visible if there was one there. Mine were easy to see before I cleaned them up.
You may be right HN. It's hard to really tell but it may be an optical illusion causing me to think there is a cut there. Once Carl gets it cleaned up and gets additional detail photos of the takedown lever area *hint hint!*
he can put the question permanently to rest.
If it doesn't have the cutout *AND* the stock is the original S/N'd stock matching the gun, perhaps this was a transition phase before the Chinese realized that inverted takedowns + non notched stockes were a bad idea. The S/N being almost exactly 3k prior to the first inverted takedown I have in my files points to this gun being one of the first inverted takedown guns made. It certainly is the earliest inverted takedown year 12 gun I've ever seen.