I’d be willing to bet that the government would eliminate the tax and subsequently make their registration really easy, like drones are now, because it would essentially be a “freebie” means of firearm registration...
The plan is to eliminate the tax *and* the registration.
Probably will happen if Trump is elected.
http://gunwatch.blogspot.com/2016/06/an-interview-with-josh-waldron-ceo-of.html