Been picking up mags in lots at good prices here and there.

Most are run of the mill east euro style.

One I have looks different, and maybe someone can point me in a better identification direction.

Pictures can come later, but here's the rundown:
-Side Rib style is eastern euro
-Fully loaded witness hole
-Metal follower, no hole, pill shaped ridge
-NO spine. Instead, the spot welds are offset to the left on the back, and a half-circle rolled feature occupies the center on the back of the mag.

Aside from a PMag, it's the only one I currently have that doesn't have a traditional spine.

Any info would just satisfy my curiosity, thanks.

ETA: Forgot to mention, there's no markings, lettering, or stamps of any kind I've been able to find on the mag body, follower, or floor plate.

Now with pictures, click for full-size...

Looks like a typical Chinese flat-back to me.

I have an identical one taken off a dead Iraqi in 1991.

Thanks for the ID, it is unique in my pile, and pictures of Chinese flat backs weren't really showing anything for me.

Yep, Chinese