Full disclosure, I never owned one. A guy in my pistol league had one and couldn’t get it to run. I shot a full size para, so he figured I knew all about them, lol. Mine was trouble free, his was anything but. We tore it apart a couple times, tweaked the extractor, tried 5 different mags and that many types of ammo. Interesting enough, it ran best on my reloads, 200 gr LSWC.
He gave up, sent it to para, got it back 3 months later . Still wouldn’t run right. IDK what happened after that.