52-K 85mm Air Defence Gun

The Soviet equivalent to the infamous 88mm gun. The 52-K was the Soviet Union's main high-altitude heavy anti-air cannon until the late war. It protected the Union's factories and industrial centres from German air raids with extreme effectiveness, and was later used as the basis for 85mm anti-tank guns and tank armaments, including that on the T-34-85 medium tank. It is easy to obtain and maintain.