GAZ-AAA (4M)
The GAZ-AAA (4M) was a self-propelled anti-aircraft truck developed by the Soviet Union in 1938, based on the GAZ-AAA truck platform. == History == In 1928, Fedor Tokarev developed a quad mount for the 7.62×54mmR PM M1910 machine gun for use as a light anti-aircraft weapon, which was adopted in 1938 as the 7.62mm M.1931 4M ZPU. The 4M ZPU was mounted on a GAZ-AAA truck to create a mobile AA weapon.