The EDGE Competition Trigger System with reduced pre-travel, is ready to go as soon as you are on target. You will get a quick, clean trigger break allowing you to shoot more accurately because of reduced muzzle movement. The short crisp reset will help your follow up shots to hit their mark. Let the trigger teach you, as you get the feedback you need to sharpen your trigger control skills. The over-travel can be adjusted with the hex key provided. Just shoot and enjoy what a precision trigger can do for your game. APPROVED by USPSA and IDPA for use in all divisions. Includes: Smooth Trigger w/ Trigger Bar/OEM/modified to reduce pre-travel & polished Trigger Housing w/ Ejector/modified (adjustable over-travel)/OEM polished 3.5 lb. Connector/OEM polished Firing Pin Safety/OEM polished Trigger spring/OEM Firing Pin Safety spring/Wolff reduced power Firing Pin spring/Wolff reduced power 4.0/4.5/5.0 Extra spring cups/OEM Hex wrench/for Over-travel adjustment Specifications for Glock Triggers EDGE Competition Trigger System: Manufacturer: Glock Triggers Color: Black Fabric/Material: Metal Gun Make: Glock Finish: Polished Package Contents: Glock Triggers EDGE Competition Trigger System