Well Im in the market for a 308 AR style rifle and theres not much new or used out there that Im wanting (price range around $1500). Do I hold out till something comes up or is it more economical to just build what I want? Criteria are light weight, free float barrel of 16 or 18 inches, sub moa, ambidextrious an option. Was looking at M&P10, Windham R18FSFST or CMMG Mk3. All will need my upgrades here and there. I have built 2 AR15 so nothing too new as far as building one. What do you folks think?