And for whoever is bickering about barrel markings, the Colt reissue shouldnt have forge codes about the FSB so theres a giant seen fuck up ideal there.If I'm using a non-nfa class three reciever, could I put inside a "pretend" sear pin on my retro Develop or would I be tempting destiny?even with the AR-15 the many way the M16's I've found a lot of