That seems like an overly eclectic mix of infantry weapons but hey, if the Serbs can make it work, why not.
What news are there of that Zastava M17? I see pictures of it in this thread. Has it been issued in significant numbers, I am asking because I take great interest in all 6.5 Grendel rifles.
From what I understand, there's a new version, the M-19, the rifle shown above, in 7.62x39mm. The gimmick being it can be re-chambered on the go, by replacing the barrel and presumably a few other components, making it spew out Grendel ammo. The practicality of that eludes me, but I'm not likely to ever use it.
So far, it hasn't been issued in significant numbers, but recent practices show that, once a piece of kit gets spoon-fed to the media, it soon starts getting issued in limited numbers, followed by mass-production.
Not uncommon amongst SOF units, due to their small structure, mission sets, and narrowed supply chain. Easier to equip and resupply them and such as U.S. Army Special Forces lends to unconventional warfare/foreign internal defense role.
In the case of Serbian SF, it mostly has to do with the wars of the '90s and vast amounts of captured weapons. Some, like the South African R4 rifles, Bulgarian AKs and Steyr AUGs, were captured and subsequently used en masse, while others, such as British SA80s and Ultimax LMGs are somewhat rarer.
German and Belgian weaponry was acquired later, when their respective governments were convinced we were going to behave and not use them on the teacher's pets in the region.
Paras in the '90s with R4s.
Early 2000s Paras with R4s an Bulgarian AKs with under barrel GLs.
Recces with Bulgarian AKs, Steyr AUGS, M5s and an M-21 thrown in for good measure (mid-2000s).