Angry Bear Arms
FN 509 Fullsize Sights
Browse parts and check the source behind each answer.
Manufacturer
FN
Model & version
509 Fullsize · Fullsize
Mounting details
MIL-STD-1913 Picatinny
Parts listed
24 total
FN 509 FullsizeSights
What the compatibility labels mean
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.
Check your exact model and part before ordering. Fitment limits
Angry Bear Arms1
Based on manufacturer information — Aug 2026.
Dawson Precision3
Sight for FN 509, Fiber Optic Front,
Sight for FN 509, Fixed Carry Black Rear,
Sight for FN 509, Fixed Carry Fiber Optic Rear,
Meprolight4
MEPRO CRIS MPO BACK UP IRON SIGHTS
MEPRO HYPER-BRIGHT
MEPRO TRU-DOT SUPPRESSOR HEIGHT
MEPRO TRU-DOT SUPPRESSOR HEIGHT - 509/510
Night Fision1
TRITIUM NIGHT SIGHTS FOR FN HERSTAL
Trijicon4
Bright & Tough Night Sights - FN509
HD XR Night Sights - FN509
HD Night Sights - FN509
Suppressor/Optic Height Sights - FN509
Warren Tactical11
FN 509, Fiber Optic Front Sight
FN 509, Fiber Optic Set: Serrated Rear Sight w/ Fiber Optic Front Sight
FN 509, Night Sight 3 Lamp Tritium Set: 2 Lamp Serrated Rear Sight & 1 Lamp Front Sight
FN 509, Night Sight Set: 1 Lamp Serrated Rear Sight & 1 Lamp Front Sight
FN 509, Night Sight Set: Serrated Rear Sight and Tritium Lamp Front Sight
FN 509, Serrated Rear Sight
FN 509, Serrated Rear w/ Tritium Lamp
FN 509, Serrated Tritium 2 Lamp Rear
FN 509, Sevigny Competition Fiber Optic Set: Plain Rear Sight w/Fiber Optic Front Sight
FN 509, Sevigny Competition, Plain Rear Sight
FN 509, Tritium Front Sight