I have seen a couple P90s at a gun show in Florida, and they have a FN FiveseveN at the "local" gun shop.
But I do have a T/C Omega, a Benelli M1-90, a Remington 870 Wingmaster, a Marlin 782 an M44 Mosin Nagant and my great grandfathers break barrel 16GA. Sure they aren't "futuristic" per say, but these guns are the future of guns.