CZ P-09 mag compatible with any others?

I'm having a mag carrier made for my cz p09. The maker does not have the correct mag but asked if it was the same as any others. Perhaps p07?

I am going to look this up myself but I always post here first.

Looks like while some mags may click in place and possibly even function between guns, the p09 mags are not truly interchangeable with others.
The mags for the poly guns are said to be .085 wider than steel guns as well as other dimensions not being the same.
I will just mail my extra may for him to use as a form.