Bolt remaoval
kgs, yes as the others have alluded to.
Pull the op rod straight back, and lift "UP", on it and out, kinda at an angle .
Make sure you lift up on it in the semi circular slot on the reciever..........
To re-install make sure the roller on the bolt is in the groove on the op rod, and pull back, to the semi circ again, and push "IN", and straighten up the rod, while holding it against and into the semi circular milled out cut........