Night Fision Sight Set Orange Front U Notch Rear For Fn 509

Night Fision night sights for the FN 509 combine Swiss tritium technology with precision engineering to deliver a bright, reliable sight picture in low-light conditions. This set pairs an orange front sight with a U-notch rear sight, giving you excellent contrast and fast target acquisition whether you're training at dusk, shooting in dim indoor ranges, or carrying for home defense. Night Fision's injection-molded design holds their tritium vials securely, and the domed lens creates a crisp, well-defined glow that cuts through darkness without the haze common to budget night sight offerings.

Built in the USA with Swiss tritium, these sights pack more luminous material than typical night sights, which means they stay bright longer throughout the night. The CNC-machined steel construction and black nitride finish resist wear and corrosion, standing up to the demands of regular shooting and carry. The orange front sight stands out clearly against dark backgrounds, while the U-notch rear allows fast sight alignment and target transitions.

FN 509 shooters appreciate night sights for duty use, night courses, and defensive carry—anywhere you need to see your sights when ambient light fails. Installation by a qualified gunsmith is recommended to ensure proper fitment and zero.

Key Features

• Swiss tritium vials for reliable low-light glow
• Orange front sight with U-notch rear for rapid target acquisition
• Domed lens design for a sharp, defined sight picture
• Injection-molded design secures vials against recoil
• CNC-machined steel construction with black nitride coating
• Corrosion-resistant finish for carry and duty use
• Made in the USA

Specifications

Frequently Asked Questions

Are these night sights compatible with the FN 509?

Yes, this set is designed specifically for the FN 509 platform.

Will I need a gunsmith to install these?

Installation by a qualified gunsmith is recommended to ensure proper fitment and zero.

How bright are these compared to other night sights?

Night Fision night sights carry more tritium than the average night sight, and the domed lens is engineered to create a sharper, more defined glow for better visibility in darkness.

What's included in this set?

This set includes a front sight with an orange insert and a rear sight with a U-notch configuration.