The World Record of making ‘Smallest Gun’ has been achieved by the Swiss MiniGun from Switzerland.

This world’s smallest gun measures 5.5 cm length, 1 cm width and 3.5 cm height. It is a double action revolver and has all the features as are found on a real size gun. The six-shot revolver fires 2.3 caliber, 1.97 grain bullets and shoots the tiny bullets at a muzzle velocity of around 400 feet per second.