Miramachi made Trigger modify their magwells so they won't accept the standard 12 gauge mags that also fit the Turkish mag fed pumps. The Uzkons here don't accept the standard magazines, there's a difference in where the catch fits the side notch.
This means that the Uzkon semi autos in Canada will not accept any of the standard 12 gauge mags that fit all the other Turkish mag fed shotguns.
This issue does not exist with the other brands of Turkish mag fed pumps and semis currently available. The mags are standardized across the board, the only difference being ones designated for pumps won't activate the last shot bolt hold open on the semis.
And yes, I have tested the pump mags on one of the other brand of semis, they work fine.