The Apex Action Enhancement Kit for the FN 509 model pistols is a direct drop-in replacement of the factory polymer trigger, trigger bar and sear. The patent pending Apex design reduces trigger pull weight to give you an approx. pull weight in the 5.5 lbs range. Trigger travel is also reduced, including pre-travel, over-travel, overall trigger travel and trigger reset distance. It provides a smooth uptake while delivering a crisp trigger break.
– Direct drop-in replacement of factory polymer trigger, trigger bar and sear
– Reduces trigger pull weight to approx. the 5.5 lbs. range
– Reduces trigger pre-travel, over-travel and reset distance
– Provides crisp trigger break
– Center mounted pivoting safety maintains factory safety values
Applicable To What Gun(s)
For use in the FN 509 model pistols.
NOT for use in FNS or FNS Compact models.
In The Package
1 ea. Flat-Faced Action Enhancement Trigger w/ Apex Trigger Bar (Patent Pending)
1 ea. Apex Performance Sear
1 Review Hide Reviews Show Reviews
Remarkable upgrade to the stock trigger of the fn 509 platform.
Stock trigger tends to be quite stiff even after breaking in. The Apex kit makes a remarkable difference in the trigger. Much lighter and smooth. With a clean consistent break and reset. Install is a little tough due to the 1 pin in the firearm so ENSURE... you watch the Apex YouTube videos for installation. Take your time and use the right tools as they identify in the videos.