"They are beautiful. They are deadly. They are female soldiers. They are representing the army in that beautiful and popular way, and I think that every soldier is statisfied that they are representing them. This group is dedicated to them. Enjoy the pictures!" Staff of the Main Headquarters of the Females in Uniform Lovers
Is that CETME rifle?
Judging from the rifle butt I would say you are right in your assumption. But the receiver part and handle look more like a G3. Dunno say for sure as both rifles are almost identical as the G3 is based on the CETME.