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Description
Green tritium night sight set with a yellow-outlined front and black-outlined rear, for tactical shooters using the FNH® FN509.
This three dot green tritium night sight set fits the FNH® FN509 and has a front sight with a yellow outline and a rear sight with a black outline.
The front sight has a taller blade and an aiming point ringed in photoluminescent paint, while the rear sight has a wider U-shaped notch, which increases visibility and quickens front sight acquisition, even in transitional lighting.
Key features
- Front sight acquisition — The photoluminescent-painted front outline and the subdued U notch rear draw the eye quickly to the domed sapphire and tritium front sight in all lighting conditions.
- Brighter front sight — A domed sapphire cap focuses the tritium illumination, giving a 2X brighter aiming point.
- Tritium illumination — Tritium phosphor-filled glass lamps illuminate the sights for high visibility in no-light and low-light situations.
- Recoil and solvent protection — The tritium gas lamps sit within protective aluminium cylinders with additional silicone rubber cushioning, which protects them from heavy recoil and harsh cleaning solvents.
- Sapphire jewel caps — Each tritium lamp is capped with a sapphire jewel that helps distribute the light evenly and adds a layer of protection from puncture and cleaning solvents.
- One-handed slide operation — The steeply hooked front surface of the rear sight assists emergency one-handed slide manipulation.
Typical applications
- Duty and tactical use on the FN509 where a clear sight picture is needed in bright, transitional and no-light conditions.
- Professional installation by a gunsmith or armourer is recommended.
Technical specifications
| Fits make | FNH® |
| Fits model | FN509 |
| Front lamp colour | Green |
| Rear lamp colour | Green |
| Front paint colour | Yellow |
| Rear paint colour | Black |
| Front blade width | 0.144 in. (3.65mm) |
| Front blade height | 0.215 in. (5.46mm) |
| Overall front blade height | 0.279 in. (7.08mm) |
| Rear notch style | U-Notch |
| Rear notch width | 0.169 in. (4.29mm) |
| Rear blade height | 0.218 in. (5.53mm) |
| Overall rear height | 0.309 in. (7.84mm) |
In the box
- 1 × HD™ Night Sights - FN509 — Front: Yellow Outline / Green Tritium, Rear: Black Outline / Green Tritium
Model information
| Brand | Trijicon |
| Model | HD™ Night Sights - FN509 — Front: Yellow Outline / Green Tritium, Rear: Black Outline / Green Tritium |
| MPN | FN104-C-600991 |





