The Wilson Combat TR-TTU 3-Gun Flat trigger represents advanced engineering and design delivering an optimal 3.5-4 lb pull weight straight out of the box with no adjustments required.Wilson Combat TR-TTU Tactical Trigger UnitDrop-in installation with no adjustment screwsTwo-stage trigger designCNC precision machined constructionH13 steel with dry film lube finishPositive trigger reset3.5-4 lb trigger pull weightPerfect for competitive 3-gun shooting and tactical applications this trigger provides consistent performance and reliability with premium materials and precision manufacturing.