Nice one
Correct Direction
I would almost lean towards and wonder if it's not a possible refurb with a replacement stock, why.... the crossbolt screw head is flat, see the 4th photo down.... something I've noticed on other Yugos that were of the uber
nice variety, like Cherry's and Samco's. The used and abused Yugoslavians seem to have the normal standard rounded head crossbolt. I don't know if it's a later design change during refurb, or it's maybe it's a post 1.TRZ refurb design.
Here is a round headed crossbolt in my used and abused, 1.TRZ mis and match refurb M59. The "C"series M59 I have has the same round headed crossbolt as well, bottom photo.