Zastava trigger adjustment
There are two adjustment screws at the front of the trigger and two more at the back.
(1) Front of trigger, lower: Safety adj. screw....Used to compensate for wear in safety bolt ie. trigger slop with safety engaged. Adj. by turning screw CW until trigger movement is eliminated with safety on.
(2) Front of trigger, top: Adjusts weight of pull. Turn CCW to decrease trigger pull. Will adjust down to approx. 2lb pull.
(3) Rear of trigger, lower. Stop or overtravel adjustment. To adjust for minimum over travel. With bolt closed, striker in fired position. Turn CW all the way in, then back off 1/8th turn.
(4) Rear of trigger, top. Sear engagement adjustment screw. To adjust for minimum sear engagement: Bolt closed, action cocked. Safety off, empty chamber (or dummy round). Turn adj. CW ubtil sear releases, then back off 1/4 turn.