Original U.S. WWII Era M4 Collimator Sight with Two Carry Cases - As Used on 60mm and 81mm Mortar Systems U.S. Field Gear while the brass carrier block

while the brass carrier block marking is worn away

The additional men provided assistance in carrying loaded magazines

and its content is fascinating

During the postwar era

The buttons on the tunic are all non-magnetic

Original U.S. WWII Era M4 Collimator Sight with Two Carry Cases - As Used on 60mm and 81mm Mortar Systems U.S. Field Gear while the brass carrier blockOriginal Item: Only One Available. This is a fantastic example of an M4 Collimator sight. This sight was used on both the US 60mm and 81mm mortar systems. By laying the sight on aiming stakes, the mortar squad could fire indirect missions. The open sight allowed the squad to fire direct lay missions. A collimator sight is a type of optical sight that allows the user looking into it to see an illuminated aiming point aligned with the device the sight