Wilson Combat Tactical Trigger Unit, Heavy Duty Flat Face Trigger, Two-Stage, 4.5-5 Lb, Fits AR-15/AR-10, Dry Film Lube Finish, Black TR-TTU-H2-F The Wilson Combat TR-TTU Heavy Duty Flat trigger, a product of advanced engineering and design, boasts an impressive pull weight ranging between 4.5 - 5 lbs. This optimal pull weight is achieved straight out of the box, eliminating the need for any user adjustments or modifications.