Knex Rubber Band Gun: Plasma Pistol

 A repeating rubber band gun that looks like the halo plasma pistol. Working on the instructable, so this is just a preview. It can hold only 9 to 11 rubber bands if you don't have spacers like me. With spacers, you can put as much rubber bands as you can (the limit is when the barrel bends back too much from the rubber bands and breaks).