Trijicon Bright & Tough Trj 601158 Bright&Tough Sro/Rmr Hd Fn509

The Trijicon Bright & Tough SRO/RMR HD sight set for FN 509 pistols is a dedicated iron sight solution engineered for shooters who run red dot or reflex optics on their carry or duty gun. This integrated night sight set pairs a high-visibility front blade with a rear mounting plate designed specifically for FN 509 slides, giving you a rock-solid backup sight system if your primary optic goes dark or fails. Built from steel with a matte black finish, it's tough enough for serious use and reliable enough to trust your life to.

Trijicon's Bright & Tough lineup is known for durability and visibility in variable light. This FN 509 mount comes as a complete set—front sight blade, rear mount plate, mounting screws, and wrench—so you have everything needed to install it right out of the box. The front blade dimensions (0.462" height, 0.140" width) and square rear notch (0.15" width) give you a clean, combat-proven sight picture. Weight is minimal at just 1.5 oz., so it won't throw off your gun's balance or handling characteristics.

Installation requires torquing the mount plate to 11 in./lbs, a straightforward procedure that most shooters can handle with basic tools—the included wrench makes it even easier. Whether you're setting up a duty weapon, a serious carry gun, or a range/competition rig, this sight keeps you in the fight if your electronic optic takes a hit or battery dies.

Key Features

• Purpose-built for FN 509 pistols with integrated night sight design
• Steel construction with matte black finish for durability and low glare
• Complete system: front sight blade, rear mount plate, screws, and installation wrench included
• Lightweight at 1.5 oz.—minimal impact on pistol handling
• Square rear notch and high-visibility front blade for fast target acquisition
• Reliable backup iron sight solution for red dot and reflex optic setups

Specifications

Frequently Asked Questions

Does this sight set work with the FN 509 and red dot optics?

Yes. The Trijicon Bright & Tough SRO/RMR HD is purpose-designed for FN 509 pistols and functions as a backup iron sight when you're running a red dot or reflex sight on your slide. If your optic fails or loses battery, you still have a fast, reliable iron sight picture.

What comes in the box?

The set includes a front sight blade, rear mount plate, two mounting screws, and a wrench for installation. You'll have everything needed to mount the sight to your FN 509 slide.

How much does this sight system weigh?

The complete sight set weighs 1.5 oz. (42.52g), so it adds minimal weight to your pistol and won't noticeably affect balance or handling.

What torque specification should I use to install the rear mount plate?

Torque the mount plate to the slide at 11 in./lbs. The included wrench and proper torque spec ensure secure installation without over-tightening, which could crack the slide.