via Wikipedia infobox
The PK (Russian: Пулемёт Калашникова, romanized: Pulemyot Kalashnikova, lit. 'Kalashnikov's machine gun'), is a belt-fed general-purpose machine gun, chambered for the 7.62×54mmR rimmed cartridge. The modernised variant is known as the PKM, which features several enhancements over the original PK design including a more ergonomic design.
Designed in the Soviet Union and currently in production in Russia, the original PK machine gun was introduced in 1961 and the improved PKM variant was introduced in 1969. The PKM was designed to replace the SGM and RP-46 machine guns that were previously in Soviet service.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).