GPMG - 7.62x54mmR Russian - Russia/CIS - 675 RPM - Yet another product of the fertile mind of Mikhail Kalashnikov, the PK-series of machineguns have been in service since 1961.  The PKM is the lightened, infantry version.  Other than the FN MAG58, the PKM is one the most reliable GPMGs in existance.  The ever pragmatic South Africans combined the belt feed of the MAG58 and PKM to create their SS-77 7.62mm NATO GPMG. ©D.E. Watters