FN 509 vs FNS-9: Is One Better?

Published on October 29, 2017
Duration: 23:42

This guide details the internal component comparison between the FN FNS-9 and FN 509, as presented by Justin Opinion. It highlights key differences in frame rails, locking blocks, trigger safety, slide stop, and recoil spring systems. The analysis reveals the FNS-9's more robust internal construction, suggesting it as a higher-end model despite the 509's competitive performance.

Quick Summary

The FN FNS-9 is considered the superior, higher-end model compared to the FN 509 due to its more robust internal construction, including longer frame rails and a single recoil spring. While the FN 509 features a dual recoil spring system and a beefier trigger safety, its magazines are not fully interchangeable with the FNS-9.

Chapters

  1. 00:00Introduction: FN 509 vs FNS-9
  2. 00:34Internal Frame Comparison
  3. 07:23FNS-9 Range Performance
  4. 07:48Slide and Internal Components Comparison
  5. 11:55Magazine Compatibility Issues
  6. 14:15FN 509 Range Performance
  7. 16:43Grip Index and Recoil Analysis
  8. 17:41Final Verdict: FNS-9 vs 509

Frequently Asked Questions

What are the main internal differences between the FN 509 and FNS-9?

The FN 509 features a beefier trigger safety and a dual recoil spring with a telescoping guide rod. In contrast, the FNS-9 has longer frame rails, a longer locking block, and a single flat-wire recoil spring, indicating a more robust internal construction.

Are FN 509 and FNS-9 magazines interchangeable?

No, FN 509 and FNS-9 magazines are not fully interchangeable. While the FN 509 magazine will function in the FNS-9, the FNS-9 magazine will not properly seat in the FN 509 due to critical differences in base plates and follower notches.

How did the FN 509 and FNS-9 compare in recoil management?

According to the 'Justin Opinion Grip Index,' the FNS-9 scored slightly better with a 3.30 rating compared to the FN 509's 3.16. This suggests the FNS-9 offers marginally superior recoil management and muzzle flip control.

Which pistol is considered the superior model between the FN 509 and FNS-9?

Based on internal construction and perceived value, the FNS-9 is presented as the superior, higher-end model. However, the FN 509 is still recognized as a high-quality and competitive option in the market.

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