Application of Safety.
    Place the safety in the safe position by cocking the hammer and snapping the safety rearward.
Loading of Rifle.
    Place the safety in the safe position. Insert a loaded magazine into the magazine well, front end leading, until the front catch snaps into engagement; then pull backward and upward until the magazine latch snaps into position. Pull the operating rod handle to its rearmost position and release; this allows the top round to rise and the bolt to move forward, thus stripping and chambering a round from the magazine.

Semiautomatic Fire with Selector Lock.
    With the selector lock in the rifle, it cannot be fired automatically. Load the rifle and release the safety. The rifle will now fire one round upon each pull of the trigger.

Semiautomatic Fire with Selector.
    Press in and turn the selector until it snaps into position with its blank face to the rear and its projection downward. The connector assembly is inoperative in this position since the connector is held forward and out of engagement with the operating rod. Load the rifle and release the safety. The rifle will now fire one round upon each pull of the trigger.

Full Automatic Fire with Selector.
    Press in and turn the selector until it snaps into position with the face marked 'A' to the rear and the projection upward. This rotation of the eccentric selector shaft moves the sear release to the rear into contact with the sear and moves the connector assembly rearward into contact with the operating rod. Load the rifle and release the safety, Pull and hold the trigger. The rifle will fire automatically as long as the trigger is squeezed and there is ammunition in the magazine. To cease firing, release the trigger.

Bolt Lock.
    When the last round of ammunition is fired, the magazine follower engages the bolt lock and raises it into the
path of the retracted bolt; this holds the bolt in the open position.

Unloading the Rifle.
    Place the safety in the safe position. Grasp the magazine, placing the thumb on the magazine latch, and squeeze the latch. Push the magazine forward and downward to disengage it from the front catch and remove the magazine from the magazine well.
Pull the operating handle rearward to extract and eject a chambered round, and to inspect the chamber. The rifle is now clear.

Gas Shutoff Valve.
    For semiautomatic and full automatic firing, turn the valve to the open position by pressing in and rotating. The valve is open when the slot in the head of the valve spindle is perpendicular to the barrel. The shutoff valve in the gas cylinder opens and closes the port in the cylinder between the barrel and the gas piston.