Wolverine T5 Curved Trigger Assembly for MTWThe T5 is the next evolution of our classic curved MTW Trigger. The updated spring design eliminates the need for a retaining screw, removing friction between the trigger pin and receiver creating incredibly smooth travel from rest to contact. Description Features Smooth travel Short pre travel Reinforced design Tool less disassembly Includes Trigger (MTW M 173) Trigger Spring (MTW M 178) Trigger Pin x2 (MTW H 110) Installation Compatibility MTW M4