The gas tube and the barrel isn't aligned and why does this gun has the AK74 mag? That receiver wasn't chambered for it. The stock is literally inside the gun (and a little part of it makes the grip hard to use)
It's impossible to use those iron sights.
It would be probably hard to use that gun WITHOUT the grenade launcher because it has no handguard which would burn the hands of the user if not grabbed by the magazine.