Armalite > Rock River
But, here are the top tier ARs:
Noveske, La Rue, BMC, LMT, and Colt, Barret, maybe Daniel Defense and Spikes
Good mid Tier
PSA, S&W, Rock River, Ruger sr 556
Junktastical
Oly Arms, DPMS,
I forgot. Armalite is in the mid tier IMHO
Add Core 15 to your list. Haven’t been able to shoot it yet, but it won’t accept some pmags while accepting others.
I’m pretty confident in pmag manufacturing quality.