MCARBO FN 509 Trigger Spring Kit

ID: 22229222211111   UPC: 200001081613

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Availability in stock, 1 Available

  • Product Information
  • Review

Product Information

  • Reduce your trigger pull from 7.25lbs to a modified 4.25lbs (Average results can vary up to +/- 1lb)
  • Improve accuracy and overall FN 509 Performance
  • Solid 40% Trigger Pull Reduction!
  • Custom FN 509 Aftermarket Trigger Upgrade!
  • Highest Quality American Spring Steel ASTM A228 Music Wire
  • FN 509 Trigger Kit includes a Custom Lighter Sear Spring, Disconnector Spring, Striker Spring and Striker Block Spring
  • Protected by the M*CARBO 100% Lifetime Guarantee


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Overall Rating
5.0/5.0 (Based on 1 Review)

Tyler J 659 days ago

m-carbo never disappoints installed this 509 kit in my post 2014 fns9. What a huge improvement. I now have a 4.5lb smooth ass trigger. took the grit and creep right out. very nice reset as well. highly recommended for the fns.