How many of you actually have had to use your guns?
The hope is to never HAVE to use them at all, but if the time ever comes, you've gotta be ready.
People said there would never be mass pandemonium in the US , that we are a very civilized country ,ect. Then hurricane Katrina happened , roving bands of gangs killing ,raping , looting en-masse. There are quite a few stories of people standing their ground during the weeks of chaos, and believe me, many were quite happy they took those "Crazy" precautions and had firearms.
It's better to be prepared and never have to use it, than to be not prepared and need it.
As for a sugguestion, I say remington 870 or a mossberg 500. I wouldn't go with a rifle or a pistol, there's ALOT more margin of error with a shotgun than a rifle or pistol. If you don't go to the range every week, when the adreniline kicks in, you won't be able to hit the broad side of a barn. In addition, I would be very careful of how you use the safe/lock systems, as most people can't open combos when the clock is ticking and there's a real threat (Very true story).
Get a shotgun with 00 buck , there's a low chance of over-penetration as they will only go through about 3-4 layers of drywall then stop. Rifles can go through homes and cause collateral damage (You don't want to hit a neighbor). Birdshot will barely make it through clothing + 1" of muscle before stopping, far too low for a lethal hit. The FBI states that a bullet must go through 12" to be considered completely effective (00 is about 8").
Nice ARs guys, I built my AR a few years ago.