https://feradyne.com/wp-content/uploads/2022/12/trufire-searx-instructions.pdf?srsltid=AfmBOop7w6I4W7fE2ZsOet2khIzzVQMPxlPsRYC8TA_vAmHQ5vwvI9nn
The micro adjust set screws engage and lock the sear in the desired position. Using a 1/16” hex to adjust the set screws equal and opposite each other,.