Apex Action Enhancement Kit for FN 509

Apex originated the drop-in trigger kit for the FN 509. The patent-pending design of the Action Enhancement Trigger Kit for the FN 509 (with Flat-Faced Trigger) makes a huge difference in the trigger pull characteristics and immediately became a must-have for 509 owners. When installed, this kit will:

– Reduce trigger pull weight to approx. 5.5 lbs.

– Reduce trigger pre-travel, over-travel and reset distance

– Deliver a crisp trigger break

– Maintain factory safety values with a center mounted pivoting safety

– Direct drop-in replacement, no fitting required