FTFY. I'm not a lawyer, but I would forsee a MUCH easier time being able to justify the use of a stock pistol or pump-action shotgun if, God forbid, I had to defend myself from a home invasion using deadly force. There's no way in hell I'd use an AR for home defense, even if I lived in the sticks and had a clear field of fire. Overpenetration with a rifle round is huge, unless you live alone on a farm. And worse, you're going to have to defend your use of an "evil" weapon that "no one needs to have" in front of a hostile prosecutor. And even if they pass, you'll have to answer to a hostile media who's out to tar and feather your extremist teabagger ass for having the macho gall to defend yourself with a firearm. Especially if you and your attacker do not share the same complexion.Frankly, for home defense, the M4gery is totally unnecessary - it does look awesome though.
In today's political climate, I'd keep the EBR in the safe and take multiple classes from reputable instructors before even thinking about using a stock and only stock firearm in self-defense. Anything less, and it seems that the legal bills and/or the media will rip your life apart. This rant could become a multi-page paper, but 'nuff said.