Original U.S. Vietnam War Era M60 Machine Gun “Rubber Duck” Type Training Aide British Helmets Attached to the liner is

Attached to the liner is a correct Early WWII chin strap

with two aluminum grommets

prompting defensive armament intended purely for destroying attacking aircraft

7 1/4  or 58cm

In very fine condition and fully functional

Original U.S. Vietnam War Era M60 Machine Gun “Rubber Duck” Type Training Aide British Helmets Attached to the liner isOriginal Item: Only One Available. This is a solid, non firing example of a rubber and foam M60 Machine Gun training, often referred to as a rubber duck. These types of weapons were utilized in training to simulate carrying the actual weapon without the risk of damage to the real weapon system or injury to the individual carrying it. These rubber ducks were often manufactured from already existing decommissioned weapons, however this example was not,