I was wondering if any body has heard of Gun Smoke Enterprises? they make AR-15s and are out of okachobee Fl. Im in the market for a ar-15 and have seen these at a gun show and was impressed with the price and look? I am also looking at the bushmaster xm-15 M4A3 "optics ready" model that has the milled gas block. Any thoughts on these guns will be apreciated.