Daniel Defense MK18 uppers with rail for $680 shipped with code M6V. No BCG or flash hider, but still a deal.
http://www.brownells.com/rifle-part...=Avantlink&utm_content=NA&utm_campaign=Itwine
http://www.brownells.com/rifle-part...=Avantlink&utm_content=NA&utm_campaign=Itwine