The Apex M&P Aluminum Action Enhancement Trigger kit directly replaces the factory hinged trigger with a solid body machined aluminum trigger, and a center mounted pivoting safety. The Model 100-064 Apex M&P Enhancement Trigger kit is an enhanced trigger for the Smith & Wesson M&P Pistols, reducing trigger pre-travel and over travel by approximately 20%. 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 of the trigger encourages the shooter to place their finger on the center line of the trigger, ensuring trigger manipulation directly in line with the bore axis. Included Trigger Return Spring Installation Slave Pin aids in the reinstallation of the trigger return spring.