And for whoever is bickering about barrel markings, the Colt reissue shouldnt have forge codes over the FSB so theres a giant noticeable fuck up proper there. The "C" about the barrel would show a chrome chamber only barrel. But AFAIK, Colt marked the "C" up close to the muzzle https://coltm16a1forsale92586.tblogz.com/colt-m16a1-for-sale-fundamentals-explained-45203597