RPK
The RPK, sometimes retroactively termed the RPK-47, is a Soviet 7.62×39mm light machine gun that was developed by Mikhail Kalashnikov in the early 1960s, in parallel with the AKM assault rifle. It was created to standardize the small arms... Wikipedia
Designer: Mikhail Kalashnikov
Barrel length: 23.2 in
Manufacturer: Vyatskiye Polyany Machine-Building Plant