http://www.milmag.pl/news/view?news_id=152
This rifle is supposedly intended for Iranian Revolutionary Guards, not the military. It bears a big resemblance to SCAR and the setup is very similar to what is seen in some tactical rifles.
http://www.thefirearmblog.com/blog/2017/06/28/iranian-zulfiqar-modular-rifle-islamic-republics-scar/
It looks to be in 7.62 although The Firearm Blog mentions that it can be in 5.56 as well.
From: The Firearm Blog