I've been trying to figure this one out and don't have a definitive answer. I'm a 65 year old retired federal agent and run one gun, why, because I know it. Now, do I need to add an AR, but at my age? The same thing goes for a shotgun. I'm too old to run and gun if things were to really go bad as far as the government goes. I don't want to get caught up in this "SHTF" stuff although anything can happen in an instant. Should I just keep my money or get a long gun. I was taught to use a handgun to get to my rifle. That was then, and this is now. My view on an AR is it's easy for house clearing and good out to "300-400" meters, a great weapon. A shotgun has so many different types of ammo that can be used and with 1oz slugs is good out to 200 meters even with a smooth bore. I'm looking at the Core 15 MOE AR, and then there's the Mossburg 590 A1 with ghost rings or on the high end the Bennilli M2. I've thought about getting a G-21 and just forgetting the rest. What's the general consciences with everyone here?