In lieu or registering my AR pistol with the ATF, I am considering throwing on a 16" barrel and swapping the brace for a stock. I have several uppers, however, not a single one falls under the HBAR classification as they all belong to pre-2013 lowers.
If I were to go this route, do I need to purchase an HBAR upper/barrel or is there some sort of exception to this rule because I'm simply converting from a pistol?
If I were to go this route, do I need to purchase an HBAR upper/barrel or is there some sort of exception to this rule because I'm simply converting from a pistol?