Trijicon Suppressor Optic Height HD XR Night Sight Set Fits Glock 20 21 29 30 41 Includes S and SF Variants Green Tritium with Yellow Outline Front Green Tritium with Black Outline U Notch Rear 601177 UPC 719307623729
Product Description
The Trijicon Suppressor/Optic Height HD XR Night Sight Set w/ Yellow Front Outline for Large Frame Glocks (MPN: 601177 / GL604-C-601177) is a professional-grade tritium night sight system engineered specifically to clear attached sound suppressors or provide a absolute/lower 1/3rd co-witness through slide-mounted red dot sights. Designed around Trijicon’s battle-proven HD XR platform, this sight set combines thin front post precision w/ high-visibility tritium illumination for uncompromising accuracy in low-light and high-stress defensive environments.
The front sight features a narrower post design that expands the field of view around distant target schedules, paired w/ a self-luminous green tritium lamp surrounded by a photoluminescent yellow outline. This high-contrast yellow front ring absorbs ambient light to glow intensely in transitional dusk/dawn lighting while glowing bright green in total darkness. The rear sight incorporates a steep hook-shaped front face designed for single-handed slide manipulation against belts or boots, housing dual green tritium lamps in black outline serrated rings to eliminate glare and focus the eye forward.
Precision-machined from solid steel in the USA, the Trijicon 601177 set features a durable black silicone finish and a wide U-notch rear aperture that accelerates alignment. Purpose-built to clear suppressor bodies and optic deck heights on large-frame 10mm Auto and .45 ACP Glocks (including S and SF variants), it delivers armorer-grade reliability backed by Trijicon’s 12-year green tritium warranty.
Armorer Bench Notes & Real-World Staging Guidance:
Fitment Matrix: Fits large-frame Glock models chambered in 10mm Auto and .45 ACP: Glock 20, 21, 29, 30, 36, 40, and 41 (including S, SF, and Gen3/Gen4/Gen5 variants). Tall suppressor/optic height profile clears standard suppressor canisters and provides lower 1/3rd co-witness on slide-mounted optics (e.g., Trijicon RMR, Holosun 507C/508T). (Note: Requires a heavy-duty armorer sight pusher tool or brass punch for dovetail installation).
- Perform a complete firearm safety check: drop the magazine, lock the slide rearward, and visually/physically inspect the chamber to verify zero live rounds are present.
- Field strip the handgun and separate the slide, barrel, and recoil spring assembly.
- Use a 3/16" hex nut driver sight tool to remove the factory front sight screw from inside the front of the slide.
- Using a heavy-duty rear sight pusher tool, push the factory rear sight out of the dovetail notch (left-to-right or right-to-left).
- Clean and degrease the slide top and dovetail slot with isopropyl alcohol.
- Install the Trijicon HD XR front sight with blue Loctite 242 on the hex screw, torquing to 4–5 in-lbs, then push the rear sight into the dovetail slot until centered on the slide.
Key Features
- Tall Suppressor & Optic Co-Witness Height: Engineered elevated profile clears suppressors and co-witnesses w/ red dot sights.
- HD XR Thin Front Post: Narrow front sight blade maximizes target visibility and long-range precision at distance.
- Photoluminescent Yellow Front Outline: High-visibility fluorescent yellow ring absorbs ambient light for instant daylight acquisition.
- Self-Luminous Green Tritium Lamps: Swiss-made tritium vials provide 24/7 continuous green illumination in zero light.
- Steep Hook-Shaped Rear Sight Face: Angled rear profile enables reliable single-handed emergency slide racking against gear.
- Wide Anti-Glare U-Notch Rear: Subdued blacked-out rear serrations prevent reflection and focus sight alignment onto front post.
Product Specifications
- Brand: Trijicon
- Model/Series: Suppressor/Optic Height HD XR Night Sights
- MPN / SKU: 601177 / GL604-C-601177
- UPC: 719307623729
- Platform Compatibility: Glock 20, 21, 29, 30, 36, 40, 41 (S and SF Variants)
- Front Sight Color: Green Tritium w/ Photoluminescent Yellow Outline
- Rear Sight Color: Green Tritium w/ Black Outline (U-Notch)
- Sight Height: Suppressor / Optic Height
- Material: Machined Steel Chassis
- Finish / Color: Matte Black Silicone Coating
- Tritium Warranty: 12-Year Warranty from Date of Manufacture
- Weight: 1.2 oz
- Country of Origin: USA
