Blog
19th Sep 2022
Top 5 Aftermarket Accessories for your FN509
1. Apex Action Enhancment Kit
While the FN 509 is pretty great right out of the box, the first thing I personally upgraded was the trigger. I opted in for the Apex Flat trigger and couldn't be happier with my purchase.
The FN 509 trigger came a bit gritty out of the box and can range from 5.5-7.7 lbs. However the Apex trigger will reduce the factory trigger pull weight to a steady 5.5 lbs.
Along with reducing the trigger pu
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