PKM

History
The PK machine gun or Pulemyot Kalashnikova Machine Gun, was designed in the Soviet Union and is currently in production in Russia. The gun was introduced to the public in 1961 and it is the most used machine gun in the Russian military since 1969. It uses 7.62 rounds.

Comparison to the MG4
The PKM is the only LMG beside the MG4 in the game right now. The biggest difference to the MG4 is the Ammo Type. It deals more damage but lacks on all the other stats. The PKM isn't restricted to loot drops like the MG4.