I only have Glock factory mags for my PC Charger but I’ve run enough pistol caliber carbines & non-Glock pistols with non-factory mags to see that while the aftermarket mags usually work in Glock pistols, it’s a gamble in anything else.
Sometimes it’s a simple issue like when I had to file a notch in the left side feed lip of my Korean 50 round drum to clear the overtravel stop on my PSA AR9 lower. Also had an ETS hi cap mag that only ran in my g19, never ran right in multiple PCCs.
Magpul & ETS mags don’t have steel liners like factory mags so you can’t tweak em if needed. I know this cause I did a LOT of tweaking on mags for my Just Right Carbine. Korean mags do have steel liners but nowhere as strong as factory Glock.
Magpuls seem to be a hair bigger in every dimension, ETS seems to be closest but I’ve had the most problems with them in nonGlocks.
Of the Korean mags I like SGMs the best, thin steel liner but their hi caps seem to come with strong springs.