5,45мм опытные ручные пулеметы ПУ-1 и ПУ-21 / 5,45mm experimental PU-1 and PU-21 light machine guns

* Обзор экспериментальных 5.45мм ручных пулеметов ПУ-1 и ПУ-21 разработки ИЖМАШ, из коллекции КТЦ концерна @Калашников * Brief review of the experimental 5.45mm PU-1 and PU-21 light machine guns by IZHMASH, from Kalashnikov concern reference collection The PU line of light machine guns was designed during 1970s in an attempt to provide a more effective 5,45mm squad support weapon than an RPK-74. Key feature of PU was its dual feed system, which allows alternate use of either 5,45mm magazines compatible with AK-74, or a proprietary steel belt with non-disintegrating push-feed links. However, Soviet military preferred either the 5,45mm RPK-74, which was cheaper and more reliable, or a full-power 7,62x54R mm Kalashnikov PKM. #ПУ-21