The Apex Tactical Action Enhancement Trigger for GlockA(R) is a direct drop-in replacement of the factory polymer trigger and reduces pre-travel, overall trigger travel, and trigger reset, provides a smooth uptake and reset while delivering a crisp trigger break. Expected Results: Direct drop-in replacement of factory polymer trigger Smooths uptake and reset Reduces trigger pre-travel, overall travel, and reset distance Crisp trigger break Center mounted pivoting safety maintains factory safety values Trigger Only works in nearly all current GlockA(R) model pistols including the G43. The trigger is NOT designed to function in the narrower frame Mfg: Apex Tactical Specialties Inc