Can anybody identify these mags? Mac 10?

[Mr10mm]

Last time I bought mac 380 mags they were $95 ea.

 

[Super Dave]

After playing with some calipers I'm pretty sure they are 380 mags as the 9mm that I have ava are really short reloads. Damn the luck as I had a willing buyer for a nice price if they were 9mm.

Seems like Mark may be a willing buyer, as I read it. You know. All the posts in your thread. He even offered to help ID them at his shop. Just saying.

 

[pb2624]

Spent time over at Mark's yesterday and after some experimenting; the 380 rounds fit the mags however the mags are two small for the Mac 11 mag well so the mystery continues. These may be for a early MAC 10 45 to 380 conversion, who only knows at this point.