transdogmifier

I don't know..Mossberg? Not a fan...As I said, Browning, Remington...and Benelli....

 
Benelli M1 Super 90
 
here's a pic of mine:
 

Depends on your home layout.  is there any fatal funnels?  Are there children in rooms that you need to worry about in certain bullet flight paths?  That might determine whether you want super sonic rounds, or subsonic rounds. 
 
In any case... I would suggest a shotgun for 3 reasons. 
1st, they are reliable. 
2nd, you don't need to aim all that well.
3rd, the sound of a shotgun racking will have tremendous psychological effects on the person entering your home.
 
2nd suggestion, a Glock pistol.
They are notoriously reliable, and 9 mill ammo is cheap.

Ah yes...Glocks, the volvo of the firearm world...

I find them ugly...*chuckle* they are reliable though....I prefer a weapon which is reliable and elegant...which is why I like my 1911s...Racking a pistol is just as effective a deterrent as a shotgun is.. people know the sound.

For home defense I wouldn't touch a poly body. If you get rushed then at least you have a heavy body to pistol whip them with

Like some others have said, a Mossberg 500 Persuader is an excellent shotgun. 7+1 12 gauge shells should be more than enough for a home defense situation. My Persuader was the 2nd gun I purchased (first being a .22 rifle). I keep a Taurus 24/7 OSS .45 sitting right on top of my gun safe within arm's reach of my bed.
 
You don't need a rifle for home defense, unless you like killing your next two neighbors as collateral damage. A shotgun or a handgun are the only options you should even think about.
 
If someone breaks into your home, you aren't going to be all calm and badass about shooting them; you are going to be pumped on adrenaline, which is going to make your accuracy take a nose dive. A short(er) barreled shotgun would seem ideal for this situation considering its hallway sized spread will take up some of your slack from your reduced accuracy. A pump or semi-auto is up to you; both are going to server their purpose, but you better be familiar with your gun and its quirks.
 
You can also go for a handgun, as they are small and easy to maneuver around doors and corners if you have to. They also have the advantage of having significantly more rounds than a shotgun. However, the trade off for that is the lack of spread a shotgun gives you. During your adrenaline rush, are you going to be able to hit the intruder(s) with a good enough shot placement to disable them?
 
Practice, practice, and practice. What I like to do to simulate an adrenaline rush is run for a quarter mile or so and then pick up one of my guns and start shooting targets. I don't know how much it will help if I need to actually shoot someone breaking into my house, but I'd rather have unnecessary practice than none at all. There are people on these forums that have been shooting guns for longer than I've been alive; I'm sure they have much more and probably better advice than I can give you, but I just wanted to express what I have learned so far.
 
Good luck on choosing a firearm.

You should get this shotgun. AR-15 Style 12 gauge shotgun. This is thing is something special. Never seen a shotgun mixed in a assault rifles frame.
 
 

 
 
 
 
Check out the video down below.