I am checking into what I can add to what I have already to protect my family in case the SHTF. I currently have three handguns (1-38 Special & 2-9MM) plus a legal 20 gauge shotgun that I modified back in the late 80's. I was leaning toward some type of AR-??, but I don't know enough about the current laws and maybe any upcoming laws concerning them. I don't want something that I risk having to pay taxes or have it taken away from me. I was then thinking of a tactical shotgun, but my wife and I both have bad shoulders, so I don't if this would work. Of course being able to get ammo plays a big part in this decision.
TIA
TIA