Apex Tactical Action Enhancement Kit for FN 509 (with Curved Trigger) makes a huge difference in the trigger pull characteristics and immediately became a must-have for 509 owners.
- Reduce trigger pull weight to approx. 5.5 lbs.
- Reduces trigger pre-travel, overall travel and reset distance
- Crisp trigger break
- Maintain factory safety values with a center mounted pivoting safety
- Direct drop-in replacement, no fitting required
Fits FN 509