The Apex Tactical Specialties 100161 is a comprehensive kit that combines the superior Apex Duty/Carry Kit for both M&P Shield 45 and Shield 45 M2.0, along with the revolutionary Apex Action Enhancement Trigger, suitable for M&P Shield 45 and Shield 45 M2.0. This kit allows for a direct replacement of the factory hinged trigger, introducing a solid aluminum trigger body that effectively decreases pre-travel and over-travel by around 20%. The upgraded trigger sports a smooth face, complete with a center-mounted pivoting safety mechanism that stays true to the original factory safety standards. The Apex Duty/Carry Kit, tailored for the Shield 45 and Shield 45 M2.0, boasts of providing the firearm owner with a smooth, consistent trigger pull. It typically operates in the 5.0 to 5.5 lbs. range, enhancing functionality with less over-travel and a more noticeable trigger reset.