For those who are so eagerly voting towards their M4s which they own, I found it interesting that so many would choose the less-reliable weapon for home defense. Is there a reason you are making a poorer choice, reliability-wise, for the defense of your home? Maybe because your M4 has those pretty dark black accessories on it?
Someone already said it. AKs are available in 5.56x45. So you can't tell me you would choose the AR because of its caliber.
Since you've got me on the topic, I don't think a rifle variant of either is the best choice with penetration in mind. And since we are in a house, we need a CQB weapon, like pistol or SBR...not a rifle. Who wants to fumble a rifle around in a closet or wherever you end up? If you are so set on .223 for HD (which I am not), than go buy yourself one of these:
Someone already said it. AKs are available in 5.56x45. So you can't tell me you would choose the AR because of its caliber.
Since you've got me on the topic, I don't think a rifle variant of either is the best choice with penetration in mind. And since we are in a house, we need a CQB weapon, like pistol or SBR...not a rifle. Who wants to fumble a rifle around in a closet or wherever you end up? If you are so set on .223 for HD (which I am not), than go buy yourself one of these: