Contenders is where my lack of interest comes from on AR pistols. I had a 10" 223 and a Super 14, neither one was fun in an enclosed environment. House gun? I'd rather affix bayonet than touch off a 223 pistol indoors.
It is remarkable what difference an 18" barrel makes, less noise and more velocity.
I put down a cow inside a barn once with a mini 14, dirt fell from the rafters for a day, my ears rang for a week.
