That's a very good question. I tend to believe it would not apply and the gun/magazine would be good to go. LEOSA allows you to carry any semi-automatic provided you qualify with one. So let's say you have a 14 shot semi-auto and you qualified per LEOSA with it. Seems to me you would be okay to carry it.
I like to think I know a bit about LEOSA
so will do some research and get back to this thread soonest. I like to learn new stuff. That said, don't rely on my view as sound advice re: the mags just yet.
Be safe.
I like to think I know a bit about LEOSA

Be safe.
Is there a 10 round magazine capacity limit like Hawaii, even though carrying under HR218?
Emory