Inside the Chieftain's Hatch: M53/M55

Join the Chieftain as he takes you on a tour of the American M53/M55 SPG! After beginning production in 1956, it entered service in two variants: the Army’s M55 and the Marines’ M53. In this video, The Chieftain explains how it was designed, how it’s controlled and why it was needed in the first place! Check out the video above!

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