I’d probably go for the AR15 and some Glock pistols. I qualified as an expert on the M16A2 so I’m more than familiar with the platform and that’s why I tend to stick with it. Glocks are the best combat sidearms available and their price is extremely reasonable especially considering that they’re the best combat sidearm you can get.
Shotgun and lots of shells. Unless you live on a large property, then probably a good rifle in .308 with a scope and a bunch of boxes of match-grade. Either way, you can only fire one weapon at a time, but you’ll still need lots of rounds for whatever you get.
At this point, I’d buy whatever you can on the cheap and put your money towards a secret room to hide them in before the regime can grab them. The quality of the weapon might not be as important has hiding the weapon.
How do you live, are you urban where you need to rapidly engage multiple targets in your yard, or in the country where you need to do the same at 500 yards?
So, why does Bud’s Gun Shop “check my browser” when I follow your link?
Make sure your AR is chambered for the 5.56 round and not just for the 223.
If chambered for the 5.56 it will shoot both.
If chambered for 223, you will be limited to only shooting the civilian 223 ammo.