Hey everyone, I'm going to be shopping for a 9mm ar this week and was wondering if there were any brands or specific things to watch out for? I had emergency back surgery last year and my back can't handle anything with much recoil. I would like to take a couple long gun classes and think the 9mm will be much easier on my back/body(plus MUCH cheaper to shoot). So what should I expect to pay for one and which one would you guys suggest????