New FNH 509 Tactical, is it worth it?

Published on August 6, 2018
Duration: 21:56

This guide details troubleshooting common malfunctions when shooting the FN 509 Tactical with a suppressor, as demonstrated by Tim from Military Arms Channel. It covers identifying and rectifying suppressor loosening and optimizing performance with subsonic ammunition using the correct recoil spring. The insights are based on extensive testing by an experienced firearms reviewer.

Quick Summary

The FN 509 Tactical may experience suppressor loosening during firing, causing malfunctions. Using the included yellow, reduced-power recoil spring is recommended for subsonic or suppressed ammunition to improve cycling reliability. The pistol features a 4.5-inch threaded barrel and comes with multiple optic mounting plates.

Chapters

  1. 00:10Introduction to FN 509 Tactical
  2. 00:58Barrel and Suppressor Features
  3. 02:09Accessories and Rail
  4. 03:02Magazine Capacity
  5. 03:48Range Testing and Malfunctions
  6. 06:08Case Contents and Recoil Springs
  7. 10:16Subsonic Testing
  8. 13:20Ergonomics and Trigger Assessment
  9. 14:51Pricing and Conclusion

Frequently Asked Questions

What are common issues when shooting the FN 509 Tactical with a suppressor?

A common issue is the suppressor loosening from the barrel threads during firing, which can cause accuracy degradation and cycling malfunctions. Using the correct recoil spring is also crucial for reliable function with subsonic or suppressed ammunition.

How can I improve the reliability of the FN 509 Tactical when using subsonic or suppressed ammunition?

The FN 509 Tactical comes with a yellow, reduced-power recoil spring designed for subsonic or suppressed use. Swapping the standard spring for this yellow one can help improve cycling reliability by reducing the force needed to operate the action.

What accessories are included with the FN 509 Tactical?

The FN 509 Tactical typically comes in a soft case with extra grip panels, various optic mounting plates, two 24-round magazines, one 17-round magazine, and two recoil spring assemblies (standard and reduced-power).

What is the barrel specification for the FN 509 Tactical?

The FN 509 Tactical features a 4.5-inch cold hammer-forged stainless steel barrel. It is threaded with a 1/2x28 pitch, making it ready for direct attachment of most common suppressors.

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