already planning 2 krinks, not about to pay over a grand for something then have to wait another 6 months for it to be approved, plus nfa xfer fees. yeesh. be a damn near $1700 gun by the time you get it in proper configuration, if you ever eventually even get it, in this state. and it won't even have the proper FSB or barrel length.
(the barrels on these extend all the way to the end of the muzzle device....which is pinned to the FSB/GB. you have to unpin, remove non-functioning booster, cut and recrown barrel to the proper length, find the correct FSB/GB and muzzle device.....jesus.)