Mach Sakai checks out the Crystal Gun M4-Storm by HiTec Multiplex that he spotted on display at 55th the Shizuoka Hobby Show. This fires a soft round that explodes upon impact and it is fed paintball style as it uses the dummy scope as the hopper. It is battery powered and the battery is in the magazine. The rounds are in an envelope which you will need put in water before the powder expand into bigger rounds which you can then pour into the hopper.