As the title says. I am in the market for a 5.56 Upper Assembly with 16" barrel, and would like to keep it under $800. I have looked at some of the Yankee Hill, Spikes Tactical and Palmetto State stuff. There is a shop in Indy called Indy Tactical Supply, have to check it out in person when I go to the 1500 show in August. Not sure on twist rate, I don't expect to shoot anything more than 62gr projectiles. Any comments, or suggestion? I am building a Spikes lower for it in case you are wondering.