HUMVEE Driver's Spring Gun

I'm not sure exactly what you would call this weapon, so Spring Gun will have to do. It is inspired by the marauder's weapon in the "shoot the tire" scene from The Road Warrior. I welded 'bookends' to a flat steel piece and drilled holes in them to hold the springs. Getting the springs on there was not easy. I rigged up a simple trigger mechanism, but in no way does it actually fire. I added a custom arrow, then bolted the whole thing to a soccer shinguard where it can be strapped to your forearm.