The trigger reduces Trigger pre-travel and over-travel by approximately 20%. It features a flat face with a center mounted pivoting safety. The center mounted pivoting safety bar prevents unintended operation by creating a trigger block that will not disengage unless the shooter places their finger directly on the trigger face. The flat, smooth face trigger causes the shooter to place their finger on the center line of the trigger and encourages trigger manipulation directly in line with the bore axis. The Shield Action Enhancement Trigger is perfect for use with the M&P Shield already equipped with the Apex Shield Carry Kit. Mfg: Apex Tactical Specialties Inc