[E-Revonut]

Remington 870, they're cheap, reliable, and the sound of a pump action even with no shells involved is enough to make most would be burglars $hit there pants. You could possibly never even buy shells, pump it if needed and if they come at you it's still a pretty good weapon as a bat. You can get a 16.5" barrell, I would opt for a smooth bore if you can find one and if you want to buy shells go for 00 buck shot. Buck shot won't go through several walls with deadly force like a slug would but will have more energy at 20' than basic birdshot will, however birdshot would be a less lethal force, if you where point blank or within 20' theres still a good chance it will be deadly. Although much more expensive, however if your only going to buy a couple and hope you never have to shoot them, you can also buy the bean bag rounds for a 12 gauge.

Personally I have a few hand guns and I have a carry permit so I usually already have one near me, the rest of my guns are in a steel security cabinet. If I had the opportunity to grab any of my guns in a situation where I needed one...I would grab my Remington 870 and leave the handguns alone.

Hope this helps