FlaMG-Vierling 14.5mm - Version used by NVA. Type 56 - Series of chinese built versions. ZPU-4 - Original production for Soviet Armed Forces. ZPU-4 [EG] - Version used by Egypt. ZPU-4 [KP] - Version used by North Korea. ZPU-4 [MN] - Version used in Mongolia. ZPU-4 [PL] - Version used by Polish Armed Forces.
Afghanistan, Albania, Algeria, Angola, Bangladesh, Benin, Bulgaria, Burkina Faso, Burundi, Cambodia, Cameroon, Cape Verde Islands, Chad, China, Congo, Croatia, Cuba,
Egypt, Ethiopia, Ghana, Guinea, Guinea-Bissau, Iran, North Korea, Laos, Libya, Madagascar, Malawi, Mali, Malta, Mauritania, Mongolia, Morocco, Mozambique, Namibia,
Nicaragua, Pakistan, Romania, Russia, Sao Tome and Principe, Seychelles, Sri Lanka, Somalia, South Africa, Sudan, Syria, Tanzania, Togo, Uganda, Vietnam, Zambia, Zaire,
Zimbabwe.