OK, so this is my first ar build. I have been picking up parts a few at a time so I don't break the bank. So far this is what I have, spikes lower with dpms parts kit, dpms buffer tube, magpul Moe trigger guard (od green), and a geissele ssa two stage trigger. Thus for I'll only have around 50 into the build. What can I say I do a lot of trading . So now its a bout time to start the upper :-\ . I know some of the parts I want in the upper. -Spikes flat top upper - spikes 16 in 1/8 twist midlength chrome lined barrel - yhm diamond rifle length free float. as far as everything else, im up in the air. So if you have any suggestions or parts u no longer need, im interested in buying/ trading.