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FN 509 Midsize Tactical Optic Plates

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Manufacturer
FN
Model & version
509 Midsize Tactical
Mounting details
MIL-STD-1913 Picatinny, FN Low-Profile Optics Mounting System
Parts listed
11 total
11 optic plates
What the compatibility labels mean
  • Lab testedFit checked by Firearm Lab for the recorded setup.
  • Documented fitmentSupported by manufacturer, partner, or reviewed community evidence.
  • Interface matchMounting details match, but this exact model and part have not been confirmed to fit together.

Check your exact model and part before ordering. Fitment limits

C&H Precision8

Holosun1

  • Based on manufacturer information — Aug 2026.

Outerimpact1

Shield Sights1

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FN 509 Midsize Tactical

Name or manufacturer part number.