I pulled my varmit build apart for some cleaning and adjusting.
here is the trigger with a adjusting screw attaached. the head hits the selector shaft to limit over travel and the bottom hits the reciver bottom to adjust pre travel. I file the bottom to adjust. It gives me a low creap very crisp trigger at around 1.5 lbs pull. it is vey touchy and it is very hard to prevent bump firing.the hammer is filed and the spring is modifed as well.
I DO NOT RECOMEND ANY ONE COPYING THIS SET UP. IT IS FOR TARGET SHOOTING ONLY AND IS VERY VERY TOUCHY AND REQUIRES CONSTANT ATTENTION, IT IS NEVER USED WHEN LOADED OR CARRIED.