CMC Triggers AR-15 Trigger Groups CMC Triggers' innovative, self-contained, and easy-to-install AR-15 trigger groups have been completely re-tooled to maximize production capacities, incorporate new design enhancements, and reduce cost. CMC Triggers AR-15 drop-in trigger groups have always yielded exceptional trigger pull dynamics. The CMC Standard AR-15/AR-10 Single Stage Curved Trigger is the ultimate design for feel and break. With the shooter's finger coming to rest naturally on the shoe, every pull is the same as the one before it. The Flat Trigger Bow renders a linear feel unsurpassed by any other trigger bow shape. This trigger features exceptional lock time along with an exceptionally fast reset. Ultra-crisp trigger Glass-smooth break Minimal lock time Positive trigger reset Easy to install Totally self-contained one piece assembly Tool steel with machined tolerances of +/- .001"