If you dont follow FLshooters advise Id recommend a Wilson Combat 22 inch 6.5 Grendel barrel or a Criterion 22 inch barrel from Brownells. Either barrel is right at $300 and it is not difficult to find someone to assemble an upper. The heart of any AR-15 is the barrel, trigger and optic. The Criterion and Wilson Combat both have top notch reputation. If you still want an assembled upper I suggest you check out Lilja. rebby on this forum can build you an upper using a Lilja barrel. rebby is running a group buy on Lilja barrels on this forum. rebby can order a barrel directly from Lilja and assemble you an upper.
https://shopwilsoncombat.com/Match-Grade...HTRG20FC8/
http://www.65grendel.com/forum/showthrea...r-round-2)
https://shopwilsoncombat.com/Match-Grade...HTRG20FC8/
http://www.65grendel.com/forum/showthrea...r-round-2)

