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FN 509 Compact MRD

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24 documented listings71 fit unconfirmedBrowse categories ↓

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How we knowHow we check compatibility
  • 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.

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Model details
Manufacturer
FN
Model & version
509 Compact MRD
Mounting details
MIL-STD-1913 Picatinny, FN Low-Profile Optics Mounting System
Compatibility records
95

Lights & rail fitment

Lights & Lasers

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Optics & footprint adapters

Optic Plates

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Sights

Sights

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Grip & magwells

Extended Magazine Releases

1 listed
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Magazines

5 listed
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Triggers

2 listed
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Recoil Springs

1 listed
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Barrels & comps

Compensators

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Also on this pistol

Holsters

1 maker

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Holster makers (1)

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Categories with no listings (9)

About the FN 509 Compact MRD

Manufacturer listing ↗ · Checked 2026-08-02

Type
Pistol
Manufacturer
FN
Model & version
509 Compact MRD
Mounting details
MIL-STD-1913 Picatinny, FN Low-Profile Optics Mounting System
Width
1.35"
Weight
25.5 oz
Barrel length
3.7"
Overall length
6.8"