The 5.5 cm Swiss Mini Gun is undoubtedly one of the worlds smallest firearms. Or is it? The gun is so small there are a few countries that won’t even classify it as a firearm (France for example) and several that are undecided. The slow velocity of it’s 2.34 mm cartridge that it dispenses plays a major part in that decision. Sorry folks in the U.S. and U.K. but it is unlawful to even import the weapon into either of your countries. Read a little more about it at http://www.swissminigun.com.