Derya TM22 mag issue

[u/Solariss35]

I just got a TM22 with 12" barrel, came with a 10 rd mag that feeds perfectly.

I bought a couple of the Derya 15rd mags, but it doesnt insert well at all. On inspection, there is a difference in the rear notch of the mags. Is this an issue for anyone else? I'm wondering if I should return it, or should I try sanding it. Don't want to mess it up if there's a different version of the 15rd mag I'm supposed to get.

Thanks

[u/Warm-Alternative-433]

First time I’ve heard of another mag difference. Idk why they do this just make them all the same lol. The first ones that came in with the original derya didn’t work in the cadet and lever models because they use a paddle mag release and weren’t cut for those either. Turkish problems