Russian Maxim 1910 for sale at International Military Apparatus. The PM M1910 (Russian: Пулемёт Максима образца 1910 года, Pulemyot Maxima obraztsa 1910 goda or "Maxim's machine gun model 1910") was a heavy machine gun used by the Imperial Russian Army during World War I and the Red Army during Russian Civil War and World War II.