Quentin, congratulations on your purchase. I am so happy with my Armalites they were the first, and probably the last 308ARs I will ever buy. I have the "B" model because that is all they had when I got my first one, and I got a heck of a deal on my second, but I like the B Gen II mag, so its no big deal. Look forward to your range reports. I will be surprised if you have any issues, they usually come from the factory ready to do some work.