I would say Palmetto State Armory mags over the Brownells ones. I have 4 and they are nice for your basic aluminum mag. I had my buddy buy some of the Brownells 'cuz I heard so many good things about them, and milspec etc. etc. but they didn't work for him, kept nosediving the rounds causing jams or once he even had a double feed. I suppose a cleaning or breaking in might help, but in my opinion the rough texture and maybe the follower contributed. The PSA ones are smooth, black, and feed well for me. Pmags are good to go in my book too.