the only firearms registration they would get are those specific handguns that you can carry, legally, on that permit.
I have three different firearms on my permit but that is not the extent of my firearms collection. They never asked me about my other firearms or even if I had other firearms.
That’s because they already assume that You have an Arsenal.
Begging a dark state apparatchik’s permission to defend yourself is not liberty nor freedom.
Even dogs and cats don’t have to do that.