I can't have suppressors or "silencers" in Missouri, but my next home-defense tool will be inspired by that poster. A shorty "muffled" AR with a red dot is pretty darn close to the perfect answer to the Home-invasion/possible- multiple-adversary scenario. I keep a set of electronic muffs next to my bed, and when I hear something odd, I put them on, crank up the volume, and listen. I can hear conversations on the other side of the brick wall, and can usually tell pretty quickly if what's going on is a threat, or a drunken neighbor.
As for the gun being "too scary looking", or not PC, screw that notion. Nobody PC is gonna break in my house and rob/kill me, so their opinion doesn't count. When the "Elitists" have been through the same situation, they can comment on my choice of weaponry. And if they've been through anything similar, they'd probably be eyeing my rig with a jealous eye, and thinking about getting one just like it!
As I like to reiterate, every Liberal is one mugging away from enlightenment!
PJ