The Yugo is about flawless from what I can tell. I'm very happy with it. I'll post more pictures of it if requested, but I figured since this was a Mosin forum I would stay on topic ;)
After taking this thing completely apart and putting it back together to clean it, I can understand why it was so widely used. You can disassemble the whole thing with basically no tools at all!
Here are a few more pics of some markings on the bolt. I'm still trying to figure out how to make close-ups look good with my camera, so bear with me.
I don't see any plugs on it. The metal ends on the wood above the barrel seems more worn than the rest of the gun though:
![Image](http://i.imgur.com/jMLE8.jpg)