Major weapon manufacturer in Serbia is "Zastava Arms"
http://www.zastava-arms.co.yu
Top products are AK-47 variants, none as M-70 in 7.62mm. There are a lot of models, basically with retractable or fixed stock.
Also, there is family of 5.56mm weapons (with SS109 bullet), similar to Russian AKS.
All models are high quality - not as Chinese or Romanian mass production rifles.
SAF new assault rifle is M-21, cal.5.56 in basic 3 variants: regular, shorten and compact (or carabine). Other accessories is optional, by so-called "blocks" (similar to SOPMOD), because this new rifle is projected as modular platform. personally, I don't like it - heavy, ugly plastic and powder particles are going backward, to face. Lousy project. But the barrel is polygonal, as at the PSG-1 or Jericho 941 pistol (Israeli made).
We had used Bulgarian AKS-101 (our markings) - totally black, quality plastic and very light (w/o GP-25 launcher).
In SAF SF, as CQB weapons, H&K family of MP-5's is widely used (from MP-5k to SD) as well as Israeli Uzi's or in some cases Croatian made ERO's (copy of the Uzi). Other "regular" units use limited number of H&K as personal weapons but official weapons for that purpose is automatic pistol Scorpion 7.65mm M-84 (Serbian variant of Vz61). But, weak bullet is death sentence for the future of Scorpion.
As side weapons we used Serbian made CZ-99 cal. 9mm (similar to SIG P226), and in SF Israeli made Jericho 941F. On picture that I posted you can see my custom CZ-99, but in 40S&W caliber.