Understanding the Quattro Trigger
The Quattro trigger is one of the most sophisticated airgun triggers on the market today. It is has 3 user adjustable settings via 3 adjustment screws. Starting from the front of the rifle:
- The first screw, closest to the muzzle, adjusts the angle of engagement of the 1st stage travel. It is adjusted with the larger Allen wrench and is best left all the way in.
- The middle screw, also adjusted with the larger Allen wrench, is used to lengthen or shorten the 2nd stage. Screwed all the way in sets the 2nd stage to the longest pull length. Backing it out, moves the 2nd stage engagement further and further back in the trigger pull, effectively shortening the final pull before the gun fires. An optimal adjustment is usually about 1 full turn out. The usable adjustment for this screw is very small. Once backed out 1 full turn, there may only be 1/2 turn of adjustment to the length of the 2nd stage. Adjust using 1/16 of a turn between 1 and 1.5 turns out. Caution! DO NOT OVER ADJUST as this could damage your gun.. Use proper caution when adjusting the middle screw.
- The last screw which is set in the back of the trigger assembly adjusts the pull weight for the trigger. It is adjusted by using the small Allen wrench. Backing out this screw will lighten the pull weight. Typically, the minimum pull weight will be between 2.5 and 3 pounds when properly adjusted.CAUTION! There is a point where the trigger is as light as possible. Continuing to back out the screw will not further reduce the pull weight. It is normal for most of the adjustment screw to remain in the trigger mechanism.
- Lastly, the design of the trigger blade is a little different than most guns. Pulling straight back will increase the resistance of the pull. However, pulling back and up, at about a 30 to 45 degree angle, reduces the felt trigger pull significantly. A simple adjustment to the shooter’s hold will accommodate this type of trigger design.