Apex Tactical 102155 Action Enhancement Red Drop-In Trigger Compatible w/Glock Gen3-4 17/17L/19/22-27/31-35The Action Enhancement Kit for Glock pistols features the Apex Action Enhancement Red Trigger with Gen3 4 Factory Trigger Bar Apex Ultimate Safety Plunger for Glock and Apex Performance Connector. The kit is a direct drop in replacement of the factory polymer trigger, safety plunger, and connector and provides for a smoother trigger pull with reduced travel, reduced reset, a crisp break and approximately a one lb. reduction in trigger pull weight.