The issue is that some of the mags have crimps, and others have crimps AND a rivet.
I drilled one of mine out, removed said rivet and plastic limiter from inside the magazine and I still could only load 10 rounds.
If you REALLY want to talk to ASC, please tell them to crimp all their pistol mags to hold 10.5rd (lower the crimp by 1/8").
You can't remove anything with that rivet (cleaning and whatnot). Even with the rivet drilled out, I can't remove the follower (as advertised)
Having that huge rivet on the bottom also stops us from adding ranger plate-type bottoms/couplers/etc.