OK, right from slide 15 of the ATF's presentation on the new rule:
- Finally, the rule provides that prior determinations that a partially complete, disassembled, or nonfunctional frame or receiver, including parts kits, was not, or did not include, a frame or receiver prior to April 26, 2022, the publication of rule are not valid or authoritative.
What that means to me that is you can no longer sell an 80% receiver the was determined to NOT be a receiver if it was determined to be so prior to April 26, 2022.
Further, on slide 14 I would claim that the ATF is saying that the mag-well and the buffer tube mount are "critical interior areas" that can not be "indexed, machined, or formed". This would eliminate current 80% lowers with the mag-well broached and buffer tube mount machined out and threaded.