PST-72040 1/72 M-30 Soviet 122-mm Towed Howitzer with Crew model kitThe 122mm howitzer M1938 (M-30) was introduced into the Soviet Army shortly before World War II to replace the World War I models. After the war the M-30 became the standard divisional howitzer of the other Warsaw Pact armies and was introduced into the Yugoslav Army. It also was sold to armies in other parts of the world. The M-30 is mounted on a box-section, carriage fitted with a shield. The recoil system consists of a hydraulic buffer above the tube, and a hydropneumatic recuperator below it. The breechblock is a hinged screw type. In recent years modified disc wheels have been fitted to the 122mm howitzers in the Bulgarian Army, but the sponge rubber filled tires of the Soviet howitzers have been retained. On the other hand the East German forces have developed a new wheel with a pneumatic tire for higher towing speed.