A lot of the places listing polish mags list them in the same listing with no choice, and at the same price. I'd assume they'd be about the same, unless you've got one of them rare 40 round [romy?] ones.
If it doesn't have any markings, it's very likely Romanian.Thanks
But I can't be anymore specific, it looks like the Tantal mag in the link but new, it doesn't have any markings to identify origin.
I think it sounds good.If you want a couple of sanatized plum russian mags I would trade