Trijicon HD XR Night Sights (part no. SA637-C-600850) are a fixed 3-dot sight set built for Smith & Wesson pistols in 9mm and .40 S&W, made by Trijicon. The XR line uses a taller rear sight blade than the standard HD set, giving a slightly deeper sight radius and a bolder rear notch. The front sight’s wide yellow photoluminescent ring surrounds a tritium vial for a fast daylight reference that keeps glowing after dark.

Key Specifications

• Yellow front, black rear 3-dot tritium night sight set.
• Taller XR rear blade for a bolder notch.
• Fits S&W 9mm and .40 S&W models.

Frequently Asked Questions

Why is the front sight yellow instead of orange? Yellow is simply the alternate photoluminescent color offered on this HD XR set.

Do these sights glow without a light source? Yes, the tritium vials illuminate in low light without needing to be charged.

Buy Trijicon HD XR Night Sights for S&W, Yellow

Add a bold, all-light sight picture by ordering this gun sight from our Lubbock, Texas gun shop.