When set at “A” (automatic), so long as the trigger is held back, the piston is free to move forward again under the action of the recoil spring. As a result the gun fires continuously until the strip is exhausted or the trigger released. When set at “R” (repetition), a separate pull of the trigger is required for each shot, as the sear engages with the piston each time the latter recoils, thus stopping the firing. When set at “S” (safety) the trigger is locked, and cannot be pulled back. As a result the gun cannot be fired. TO STRIP AND ASSEMBLE THE GUN. 1st.—Close breech. (_a_) Lift feed piece to its highest position by pressing up on its lower end as for loading. This releases shoulder of piston from feed piece and allows it to move forward slightly and rest on the sear. (_b_) Pull trigger, cocking handle being set at “R” or “A.” As this releases sear, the piston is propelled forward by recoil spring and breech closed as when firing. 2nd.—Remove cocking handle. (_a_) Throw cocking handle knob to left, slightly past vertical and against stop. (_b_) Draw cocking handle back about ½ inch and then throw knob to right as far as possible to an angle of about 45 degrees. By this movement cocking handle is released from piston. (_c_) Withdraw cocking handle to rear. 3rd.—Remove guard. (_a_) Unscrew locking screws on left side of receiver three turns. (_b_) Grasp receiver firmly with left hand and stock or pistol grip with the right. Push stock forward about ⅜ inch and then bring it straight down, separating it from receiver. This combined movement will be learned after a few trials. Firing gear (sear, sear spring and trigger) remains with guard. 4th.—Withdraw recoil spring from receiver. 5th.—Remove recoiling mechanism. (_a_) Insert cocking handle in piston and push it forward as far as it will go, knob inclined at about 45 degrees to right. When home, turn knob to vertical position so as to engage lugs at forward end with piston. (_b_) Draw cocking handle to rear, and with it the piston, breech block, extractor and firing pin. 6th.—Remove feed spring. (_a_) Disengage feed spring from button at top of feed piece, springing it up with forefinger of right hand by means of the hooked portion projecting to rear. (_b_) Dismount feed spring by pushing it to rear with left hand by means of knurled button, at the same time springing it up sufficiently with right hand to clear pawl from rear feed guide. 7th.—Remove feed piece. (_a_) Throw open feed piece cover by means of knurled knob. (_b_) Lift leaf of rear sight.