|Place of origin||Yugoslavia|
|Wars||Yugoslav Wars, 2001 Macedonia Conflict|
|Designer||Zastava Arms ("Zastava oružje")|
|Weight||11 kg (24.25 lb)|
|Length||1,175 mm (46.3 in)|
|Barrel length||658 mm (25.9 in)|
|Action||Gas-actuated (rotating bolt)|
|Rate of fire||700-800|
|Muzzle velocity||825 m/s|
|Effective range||1000 m|
|Feed system||Belt-fed with 100 and 250 round belts|
|Sights||Adjustable iron sights, optional mount required for optical sights|
The M84 chambers the 7.62 x 54 mm R round. It is gas-operated, air-cooled, belt-fed, fully automatic firearm.
The standard M84 is intended for infantry use, and is derived from the Russian-made PK machine gun. It differs from the PK-series in that it has a solid wooden stock and an unfluted barrel. It is also configured for tripod mounting (like the PKS) and comes with a scope mount (like the PKMSN).
The M86 variant is based on the PKT, and is designed to mount as a coaxial weapon on tanks and other combat vehicles. The stock, bipod, and iron sights are omitted from this version, and it includes a heavier barrel and electric trigger.