Adjustable trigger

Generally speaking, back off the second stage screw until only the first stage fires the gun. Then slowly introduce the second stage screw. Keep shooting the gun until the second stage screw is felt.

There is a fair amount of contact between the sear and its locking latch. The first stage screw brings that contact to the edge of the sear's let off as you pull the trigger. When the second stage screw makes contact, it should do so near the point of trigger let off. At that point, both the first stage screw and the second stage screw are in contact with the sear lever and this is the point that you will feel the trigger stop stop first stage travel. Further pressure trips sear and the gun then fires.

You may have to make minor adjustments from there to suit your wants. There may be a trigger pressure screw involved too. If you adjust the screws too close to the edge of the sear let off, the gun could be dangerous and fire when bumped. After the adjustments are complete, point it in a safe direction and bump it harder than you would normally do when getting into shooting position to be sure it does not fire. If it does, adjust accordingly to prevent bump firing.
 
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