This x1000. I can't even imagine what it would do to the poor dogs. The thought of shooting an un-suppressed AR, without any hearing protection, is a great big no for me even at the range, let alone in the house with the windows closed.
Between the noise and over penetration, I am going to stick to a handgun.
Lol @ overpen, a typical 5.56 round like an XM193 is actually less likely to overpenetrate vs a 9mm handgun round even. When light rifle bullets hit walls or other solid objects they tend to either disentegrate and go off course etc. Will it leave your house? Probably- but a 9mm or a .45 etc will do it almost EVERY time, so what difference does it make, functionally? The other fun thing is "wah overpenetration" is so sauced up memetically to the point of absurdity; and it always ignores the fact that bullets that can't exit at least a couple layers of building materials are typically terrible stoppers in terms of wound ballistics. There is no free lunch.
-Mike