GAZ-AAA (4M)

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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.^[1]

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^[2] as the 7.62mm M.1931 4M ZPU.^[3] The 4M ZPU was mounted on a GAZ-AAA truck to create a mobile AA weapon. While effective against low-flying targets due to the high rate of fire, this setup was only used as a stop-gap measure until more dedicated anti-aircraft weapons could be developed and fielded.^[4]

• Crew 3 (Commander, Gunner & Loader)
• Elevation: -10° to +85°
• Traverse: 360°
• Gun Sight: Ring
• Gun Mount: Rotating metal frame
• Weight: 460 kg
• Rate of Fire: 2.400 r.p.m.
• Maximum Ceiling: 1.400 m
• Maximum Ground Range: 1.600 m

Later versions of the anti-aircraft truck equipped the 12.7×108mm DShK machine gun.^[1][5][6]

The quad-Maxim mount was also used on the 4x2 GAZ-MM and GAZ-60 half-tracks.^[7]