This is a Apex Tactical Specialties Trigger known as the Apex M&P M2.0, model 100-126.
The Apex Action Enhancement Polymer Trigger & Duty/Carry Kit for the M&P M2.0 directly replaces the factory hinged trigger with a solid body trigger" the sear and safety plunger for the ideal duty/carry trigger performance.
Features:
Reduces trigger pre-travel and over-travel
Reduces trigger pull weight by approximately 1 lb.
Smooths trigger pull
Reduces reset length