Sig magazine ID

[growr]

Was given these by my brother and neither can identify.....was mismarked as 229 magazines.
The are SS single stack 9mm most likely.
Randy

 

[M29since14]

That's a "stump the band" question, at least as far as I can see. I'm no SIG guru by any means but I've never seen anything like that one.

 

[dusty3030]

They don't look like a factory Sig anything. Not a 239 mag. Might be a 225/ P6 mag but aftermarket if so. The funky base pad might come off to reveal some markings on the base.

 

[Ματθιας]

As stated, I don't think that's a factory sig magazine. Maybe a 239.

The strange thing is the zipper back. And the rivets(?).

380? 9mm? 40? How many rounds?

 

[growr]

Will hold 7 .40sw rounds.....spring is very stout...must use loading tool. The zipperback lead me to think it was a Sig mag.