So this is finally complete, I had built a lower and had an upper and a bull barrel. I had picked up some other parts along the way but yesterday and today I decided to purchase another lower, and parts for an upper. I know it's confusing when all is said and done by this time next week I'll have an additional 20inch ar with heavy barrel etc.
Ok so aero precision lower, stag upper, lower parts kit from minute man armory, it's basically mill spec with a smoother trigger. Ares armor 16 inch barrel and nib bolt carrier and bolt, ares armor charging handle, Yankee hill low profile gas block and compensator, ace skeleton stock curtesy of one Mr. Atilla, ALG defense super lightweight aluminum rail, magpul flip up sights, and a lucid m7 sight (heard mixed reviews but it seems solid and the price was right).