Anyone know what the ATF criteria is for 'becoming aware of a pistol' ? Because I'm pretty there's a Contender barrel for everything up to and including 50BMG at this point, and I know for a fact numerous chopped up Mosin receivers have been rewelded into Obrez (Obrez-es?). Is it just commercial availability they care about, and if so, how many before they consider it 'available' ? As you can see, even if the ATF is just innocently complying with the law as written like they claim, it's impossible for them to do so without being arbitrary.
TCB