The US M70C was a crucial piece of equipment in the WWII-era Sherman Tank, serving as its main telescopic sight. Used primarily by gunners, the M70C Telescope provided a critical advantage in combat through its enhanced viewing and targeting capabilities.

Produced by the United States during the height of the Second World War, the M70C was designed to maximize the efficiency of the Sherman Tank's primary weapon, the 75mm gun. The sight specifically increased the effectiveness and precision of the tank's gun, allowing for more accurate shooting at enemy targets, and therefore, increasing the tank's lethality on the battlefield.

Manufactured to be robust and durable, the M70C could withstand the intense rigours of the war. Its design incorporated a combination of glass and metal, which not only ensured less damage from the harsh battlefield conditions but also provided a clear field of view, even under adverse weather conditions.

The M70C Telescope substantially improved the performance of the Sherman Tank during World War II. It played an integral part in the US forces' efforts, providing much-needed visual assistance to American tank operators, thereby helping the Allied forces secure numerous victories throughout the war.