Write your best idea for a gun. Mine's a shogun with smart shells that release pellets at a range determined by a knob and reset on the side of the gun, with a backback with a 3d printer and robot arms to make new ammo out of metal scraps with a power source.
Since obviously the propulsion for the smart shell would need to explode, this is a long range mini grenade shotgun with portable ammo manufacturing backpack. I would call it lorags.