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FN FNX 45
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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
FN FNX 45 / Tactical
Mounting details
MIL-STD-1913 Picatinny
Compatibility records
82
Lights & rail fitment
Sights
Also on this pistol
Holsters
5 makers- ANR Designchecked 2026-07-30
- Alien Gear Holsterschecked 2026-11-01
- Concealment Expresschecked 2026-11-01
- Vedder Holsterschecked 2026-11-01
- We The People Holsterschecked 2026-11-01
Check each manufacturer’s options for your model, light and optic.
Grip & magwells
Optics & footprint adapters
Triggers & internals
Categories with no listings (12)
About the FN FNX 45
Manufacturer listing ↗ · Checked 2026-08-02
- Type
- Pistol
- Manufacturer
- FN
- Model & version
- FN FNX 45 / Tactical
- Mounting details
- MIL-STD-1913 Picatinny
- Width
- 1.58"
- Height
- 6.3"
- Weight
- 33.2 oz
- Barrel length
- 4.5"
- Overall length
- 7.9"