Turkey shotgun mags compatibility?

[jeffQC1]

Hi guys!

A question about shotgun magazines from turkey made semi-auto shotguns. The Derya Mk12, BR99, F12 typhoon, FD12, 1919, etc...

They all seem to have identical mags. I have a BR99 and they are pretty much exactly the same from a visual check. I think it's safe to assume that these magazines are interchangeable between different brands?

I'm asking since i plan to get rid of my BR99 to upgrade to a F12, and would like to know if my spare mags are still usable.

 

[polskiogorki]

No. They are not really. There are a few threads on this.
My mka1919 mags were not good in my mk12

 

[wheeler]

Bullseye in London advertised the Derya mags fitting the Axor MF-2. Yes they fit but do NOT cycle properly...