Specifically engineered for use with competition-ready and tactical AR-9 rifles and carbines, the TriggerTech AR-9 Black Adaptable Trigger is a user-adjustable drop-in rifle upgrade, designed to deliver a consistent pull and a clean, crisp break in any tactical shooting application. Featuring Zero Creep Technology, this drop-in trigger offers a true zero-creep break, extremely short overtravel, and a sub 0.015” tactical reset for outstanding reliability in any fast-action tactical, competition, or target shooting environment.