As armored vehicle design matured, it became increasingly apparent that the tank’s 37mm main gun was also insufficient to take on vehicles with increasingly better armor protection. The M3 ...

A secondary .37mm cannon sat atop the tank, and two Browning M1919 7.62 mm machine guns were emplaced in fixed positions. The M3 was a medium tank, but a 75mm gun made it pack a significant punch.

Mated to an M6 carriage, the gun was designed to replace the smaller, lighter and now-obsolete M3 37MM gun, which was not able to mount meaningful resistance against Axis tanks. The M5 was issued ...

The M3 Lee, also known as the Grant in British service ... hull with a 75mm gun mounted in a sponson on the right side and a 37mm gun in a turret. This configuration made the tank difficult ...

Though the M2 eventually left service, the tank’s successor, the M3 also fared poorly as it retained a 37mm main gun. This was one of the United States’ smallest tanks of World War Two—and ...