Thanks for those who responded to the thread. Especially the ones who actually read the post and stuck to the caveats of the question. For those who are 3 gun guys... I'm not building a 3 gun AR. If I was, I would have asked about what the best 3 gun setup was! I'm glad you guys are passionate about the subject, though. Back on topic, I'm still tying to figure out which way to go. I will probably build a poly lower with standard A3, sportical style, upper. I imagine it is going to be a 16" retro barrel and poly hand guards. Maybe MOE? I'll match grip, hand guard, and stock. As for which bcg... Don't know yet. I'll keep the updates coming as I get stuff. Also, if you have ideas, lemme know. Thx