A couple of $1 funky metric screws finally arrived, allowing my to complete my American AKM project with the proper Bulgarian side-folding stock.
The stock is both well-designed, and crude in construction. I disassembled it, and ground and polished the bearing surfaced in the hinge assembly so it opens and closes smoothly, but still has that "snap" to it when it locks in either position. A generous rubber bumper in the top loop of the "buttplate" keeps everything solidly locked in the closed position, with no wiggle, rattles, or steel-on-steel contact.
The only thing really modern on this carbine is the PWS muzzle attachment. The original sov-bloc slant-cut attachment was worse than useless, in that it increased noise, muzzle blast, and recoil. Of course, the sights are as miserable as ever, but I suspect the intended users of this style of weapon never learned how to aim, anyway.
I finally had a chance to run a few magazines through the stainless steel CZ75B. That almost didn't happen because I managed to pack up everything I needed, except the magazines. A dozen mags at home, and not one with me at the range. :)
Fortunately, they found another stash of MecGar magazines for the CZ75B, so I was able to buy one on the spot. This was the first rounds I fired from the gun, and it's not too shabby, especially for me. :)
I may have to set aside the classy Hogue aluminum grips, and get some plain ol' rubber ones. The polished stainless steel is just too slippery for me to get a firm enough grip to operate the slide without major effort. The stickier rubber grips should allow me to push the frame forward with my right hand, while pulling the slide back with my left. A minor quibble for what is turning out to be the best-shooting 9mm out-of-the-box that I've ever owned.