It'll never happen, the government will never give up a source of income (NFA tax) the best we could hope for is a slightly less tedious amount of paperwork. Also given that I have a drivers license, a passport, was in the military, and have a CWP the government already has me on whatever "list" they keep around with full color photos, blood work, and fingerprints. AZ, and Maricopa County at that, is about as gun friendly as you'll come across in the US, if you want it get it.