I have these coming in the mail next week... PSA 20" A4 upper PSA blem lower Geissele SSA-E + MOE parts kit A1 stock Troy rear BUIS 5 20 round P mags Likely will get Nikon 1-4 or 2-8 to round out optics, and will be mostly shooting TAP 75 grain and Hornady 77 grain steel match in this one. Big brown truck came today A1 stock and 20 round PMAGS Geissele SSA-E and PSA LPK PSA Blem Lowers (cant find the blem on either) Steel Match Black Hills mk 262 I finished the lower tonight, waiting on my PSA CF 20" Upper. I got it all put together tonight...loaded up some PMAGs with the steel match, and I'm just waiting on the upper now. The Geissele trigger is amazing and the PSA lower and parts kit are very nicely done. I love the LOP on the A1 as well. I decided to go w/ the steel match hornady and I got some mk262 from ammo to go (in 5.56 pressure).