Somebody posted on here recently about a cheap Palmetto State Armory AR in 7.62x51 and now I've got the fever. Yes I have other things in .308, but you all know how it is. Just one more? Seems like worth trying for ~$650 new, complete. What barrel? Stainless? Nitrided? 18"? 20"? Rifle? Middy? Go for a blem? What say you Tradesmen?