Pmags work great if they are the newer ones . I also bought some AR-Stoner mags that work great
Have been very happy with 30 round PMags. I've had some issues with a 20 rounder, but I found a fix that I'm doing this weekend.
I have 2 older 20 round pmags that suck . Feed jams every time I use them . What is the fix you have .cus if I can't fix them they are going in the trash