WOW! Clearing your house? I'm pretty sure that's what 911 and the police are for. The shotgun is for keeping the intruder away from where I'm at, hence the term "home defense" with emphasis on the defense part, not for "clearing" my house. Not to mention, high capacity weapons, specifically the 5.56mm type require you to aim or innocents might become your unintended victims. And if you need more rounds than the M4 with a mag extension holds you should probably spend more time on the range.