Developed as a potential firearm for the U.S. Secret Service, the FMG (Folding Machine-Gun) disguises itself as a external laptop battery and unfolds into a fully functional weapon that can empty a 9mm 30-round clip. The portable design offers additional space for an auto-sear to be installed and has an attached tactical light created by Insight Technologies. Best of all, you can slide it in the back of most pants pockets. While the FMG-9 is still in its prototype phase, submachine fiends could see an automatic version in the near future. But don't be surprised if you see first see it on the big screen.