I would say that if you are worried about Hildabeast in 2016 then 1911's aren't the concern. I would think an adequate compliment of AR pattern rifles(2), mags and ammo would be the ticket, as well as the standard capacity mags (15+) for any semi auto firearms that you put on your must have list.
Judging from past panics (Clinton..the first one and Obama), the actual firearms will become available (You will eventually find your XDM or Glock in 45acp, 9mm or whatever caliber), even if there happens to be a big initial panic. What has been hard to come by or is likely to get banned is the magazine.