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FN 509 Midsize Tactical

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  • Lab testedFit checked by Firearm Lab for the recorded setup.
  • Documented fitmentSupported by manufacturer, partner, or reviewed community evidence.
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Model details
Manufacturer
FN
Model & version
509 Midsize Tactical
Mounting details
MIL-STD-1913 Picatinny, FN Low-Profile Optics Mounting System
Compatibility records
102

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About the FN 509 Midsize Tactical

Manufacturer listing ↗ · Checked 2026-08-02

Type
Pistol
Manufacturer
FN
Model & version
509 Midsize Tactical
Mounting details
MIL-STD-1913 Picatinny, FN Low-Profile Optics Mounting System
Width
1.35"
Height
5.2"
Weight
27.9 oz
Barrel length
4.5"
Overall length
7.9"