Mounted in a quad configuration, the M2 .50cal machine gun made a highly effective anti-aircraft weapon in the hands of the American soldier during World War Two.
The M51 mount did not a have high degree of mobility when compared to other mounts used during the war. It was often restricted to locations with good roads and could not be man-handled into position quickly. These factors made the M51 suitable for semi-stationary roles such as protecting artillery positions and supply depots from potential air attack.
In Flames Of War
Keeping the dwindling number of German aircraft away from Allied high value targets is the bread and butter of the M51 .50 cal AA guns. Protect your artillery by placing them in range of your anti-aircraft guns.