The Vektor SS-77 is a machine gun designed by the Vektor Arms company in South Africa.
The design started in the 1977
as a replacement for FN MAG, hence the "77" in the name, the "SS" being the initials of the designers. At the time South Africa was involved in it's Border War
while being subject to an international arms embargo and as result had to design and manufacture its own weapons.http://en.wikipedia.org/wiki/Vektor_SS-77