Very good.
I forgot to also mention that the rifle can never leave the state as you cannot bring it back in. So any out of state hunting, competition shooting, smithing, cannot ever be done.
Yes. I have a 50 cal on the mainland right now getting trigger work done just in case...
However, I don't think most guns can be called "assault weapons" if disassembled, and I don't know of any precedent for them to get around that.
For example, if it's an AR, and you separate the upper and lower receivers, then how can it still be an assault weapon? "Oh, I was going to put that upper on my lever-action lower, and that lower only goes with my bolt action upper." Or even if you just remove a critical gas system part... There's no longer a semi-auto in the picture, right?
I'm sure they could prosecute, if they somehow caught you doing it. Perhaps if it says "semi" on your registration, then they'll consider it as always a semi, even if configured in a way that is most definitely not semi-auto? But this is the same government that is completely flummoxed when it comes to prosecuting ghost gun cases, so it's hard to imagine them turning into legal beagles regarding disassembled gun parts being personally transported across the border.
So I reckon that the crossing-state-lines thing is very much unenforceable
for most guns as long as people are a little bit intelligent about it. (For a 50 cal where the serial number can't be detached from the barrel, it'd be a more tenuous argument.)
The fact that new guns couldn't be registered would be where the government would get to bare its teeth with the new law.