556 M200 Military Spec Blanks for the Can Cannon. Currently available in 50ct bags. These are new manufacture US military contract blanks produced in the USA. 100% satisfaction guaranteed to work in our Can Cannon and Launcher systems. Many companies claim to sell M200 blanks, but many are surplus none US manufactured, or reloads that do not fit the tight chamber tolerances of the 5.56 Nato chamber.