37mm M1939 (61-K) 37mm Towed Anti-Aircraft (AA) Gun System
he 37 mm Automatic Air Defense Gun M1939 (61-K) was a Soviet anti-aircraft gun used extensively during World War II and proved very successful against targets like German dive-bombers and low flying aircraft. Designed in 1939, it was based on the Swedish Bofors 40 mm but adapted for Soviet production. It had a 37 mm caliber, a […]