It looks more like a G3 or a copy, from the looks of the rear sight base. The end cap is different, but Ive seen smaller guns in that family with them, so maybe it was an option with the 7.62 guns as well.
"If the rule you followed brought you to this,
of what use was the rule?"
“The enemy is anybody who's going to get you killed, no matter which side he is on.” - Joseph Heller