The US 20mm Dummy Round INERT is a non-functional replica of standard-issue 20mm ammunition, typically used for training or display purposes. Manufactured to replicate the size, weight, and appearance of live 20mm rounds, this inert example lacks any explosive or pyrotechnic components and cannot be fired. Such dummy rounds are commonly employed in military training exercises to familiarize personnel with the handling, loading, and unloading of real ammunition under safe conditions. The 20mm caliber has seen widespread use in various types of automatic cannons, including anti-aircraft guns and aircraft-mounted armaments, throughout the 20th century. The inert training round features appropriate markings, color, and construction materials consistent with U.S. military specifications. It serves as a reference specimen for collectors, historians, or educational institutions interested in military ordnance. This item is intended for display or instructional use only and is not capable of discharging any projectile.










