Ok, I've been toying with this idea in my head, and figured I should ask if anyone has done this. Use a Bushmaster Carbon 15 pistol(http://www.bushmaster.com/shopping/Carbon15/az-c15p97s.asp) as the base, Ace Shorty Skeleton stock (http://www.bushmaster.com/shopping/buttstocks/skel-sh-stk.asp), attach a vertical pistol grip, and an Aimpoint.
Has anyone done something like this ? If so, would you mind posting pictures? I would sure like to see what it would look like.