The stamped variants would also have an adjustable gas system to aide in the use of suppressors.

On the machine gun variant, the M77 possess a folding bipod and cooling fins on the barrel to allow for longer strings of fire.

Between 2014 and 2015 a semi-automatic variant of this rifle was imported into the United States as the M77PS.

This variant had a polymer thumbhole stock and a 10-round magazine in order to comply with US import restrictions.

In 2022, Zastava Arms USA once again began importing a variant of the M77 onto the US market, this time with a standard fixed stock and 20-round magazine.