Unknown mags, likely MAC? Assistance appreciated!

[HKP7]

Boy, you guys all beat me to the punch. I agree, Madsen, PAM2, and probably Tec9.

If its a Tec 9 mag, it must go to a variant that doesn't have the high mag catch. Again, it looks like a Tec 9 mag, but does NOT latch in my Tec9.

 

[USMG]

Its not a Tec9/AB10 mag. Tec9/AB10 mag catch tab on the rear is up near the top, about 1 inch or so down.

 

[HKP7]

Its not a Tec9/AB10 mag. Tec9/AB10 mag catch tab on the rear is up near the top, about 1 inch or so down.

Agreed. That's why I'm so curious as to what it goes to.

 

[HKP7]

The "Mac Man" book seems to say that this is a National Magazine Inc. 36 round mag. It looks very similar to the picture in the book, and has the plastic follower that company had in their mags. Unless I see something more compelling, I'm going with that.