Im more AR than AK too but I got 1 in a trade a few years ago thats a solid shooter. Its a Yugo M70 AB2 underfolder and even though it came from CIA its straight. All but 1 of the numbers match and Ive since put a quadrail handguard on it, not too much choice in customizing because of the grenade gas block sights on it. Not sure but I think Yugo/Zastava/Serbian are from the same factory, and I think they were sourced out by CIA hence it being a straight build.
The Chetniks do good work. On AK's and other interesting things.