US army M42 Duster self-propelled anti-aircraft gun deployed in Vietnam in 1968.
Source: US Marine Corps -
© Public domain
The M42 Duster is the successor of the M19 MGMC. The M42 features similar armament, but uses the chassis of the M41 Walker Bulldog light tank.
For self-defense a .30 M1919A4 machine gun is fitted on a pintle mount.
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