Yup, everything is legal until a legislative act makes that thing illegal. :grinOf course, they are legal.
The question is whether the lower meets the ATF definition of a firearm. The reality is that it doesn't, even though that's been the case in practice.
Some very good points. I don't think we really want to upset the apple cart. It will likely only make things WORSE, in this case.I think this whole AR15 thing is going to blow up in our faces. ....
We'll see what the future holds, but at some point there will be a fish big enough that ATF/DOJ can't handling having to let them off the hook and something will be done about this. Meanwhile, stocking up on unserialized uppers might not be a terrible plan.