PK machine gun
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.