Works well, you can shoot through coke cans from a distance (if you're a good enough aim) and never, ever shoot it at anyone. Well I did with a pen with their permision. You know that metal bit in a pen ink thing? It went into his arm. So just don't do it. You can put multiple elastic bands on the shooter because the gap is big enough in the weaver. The hold may look fragile but is actually really strong. The whole model is really strong and when stepped on does nothing.
Works best with metal skewers with the circle bit cut off : D