Capable cargun? Sounds like a rifle in this scenario. I say a handgun and an AR.
A handgun is, without a doubt, the ultimate weapon in the hands of modern man.
A rifle in the car presents challenges. I have a plan for traffic. So if the bridge goes out, the traffic is going to sit for days. You’ll have to walk.
Rifles don’t fit in bags, unless it’s a take down. And walking away from the highway with a rifle on your back is a sure fire way to get people on the phone reporting you.
The AR is a great “take down” and that’s how I keep it. So it doesn’t quite look the part of a rifle. Another thing I use is the Keltec KSG. This is a compact shotgun, and the sling points make it conceal under a jacket without any issues.
But the pistol is the best, hands-down. I know people say “Your pistol gets you to a rifle” but I think it’s time that people considered how powerful the compact firearm truly is. You can gather your gymbag and “gray man” it while maintaining protection and the ability to hunt for small game.
Make that pistol an FN five-seven and you’ll truly be capable.