Description
Adding a can or a red dot to your Glock throws your factory irons out of the game, and that is exactly where these come in. The Trijicon Suppressor/Optic Height Night Sights sit taller than standard sights so your sight picture clears a mounted suppressor and lines up through the bottom of most slide-mounted optics. This set pairs a green tritium front lamp wrapped in a bright orange outline with a subdued metal rear, giving you a fast, high-contrast picture in daylight and a self-glowing reference once the sun drops.
What Sets These Suppressor/Optic Height Sights Apart
The orange front outline is photoluminescent, so it soaks up ambient light and glows during those transitional dusk-and-dawn hours when a lot of sights wash out. The rear stays clean and dark on purpose. That contrast pulls your eye straight to the front post for quicker alignment, and when you are running a red dot, the plain rear stays out of the way instead of fighting the dot for your attention. Trijicon builds each tritium lamp inside a protective aluminum cylinder, cushions it with silicone rubber to survive heavy recoil, and caps it with a sapphire jewel that spreads the light evenly while shielding the lamp from solvents and punctures.
Fitment and Real-World Use for These Trijicon Night Sights
This set covers Glock standard-frame pistols including the 17, 17L, 19, 22 through 28, 31 through 35, 37 through 39, and 45. Used as backup irons, a proper co-witness lets you grab the dot fast and gives you a dependable aiming solution if the optic ever goes dark. The whole set is tested to military standards and rated to perform from -20 to 140 degrees, so it holds up whether you are at the range in July or hunting in a cold snap.
Installation calls for a sight pusher and a bit of care with the front screw, and Trijicon recommends professional installation if you would rather leave it to a gunsmith. The green tritium carries a 12-year glow warranty from the date of manufacture, which is a long runway of battery-free brightness.
Key Specifications
- Manufacturer: Trijicon
- Manufacturer Part Number: GL201-C-601138
- UPC: 719307620643
- Model: Suppressor/Optic Height
- Product Type: Night Sight Set
- Front Sight: Orange Outline / Green Tritium
- Rear Sight: Metal (blacked out, no tritium)
- Sight Style: Three-Dot / Square Notch
- Front Sight Width: 0.144 in
- Front Sight Height: 0.418 in
- Rear Sight Height: 0.451 in
- Fits: Glock 17, 17L, 19, 22-28, 31-35, 37-39, 45 (standard frame)
- Tritium Lamp Warranty: 12 years from date of manufacture
- Temperature Rating: -20°F to 140°F
What’s Included
- Front sight (Green Tritium / Orange Outline)
- Rear sight (metal, blacked out)
Frequently Asked Questions
Will these Suppressor/Optic Height sights co-witness with my red dot?
Yes, that is one of their main jobs. These sights are built taller than standard irons specifically to serve as backup irons for slide-mounted optics like the Trijicon RMR and SRO. Co-witness height can vary a little depending on your exact optic and mounting plate, so it is worth confirming clearance with your specific setup.
Does the rear sight have tritium too?
No, the rear on this particular set is a solid metal, blacked-out rear with no tritium. That is intentional. The dark rear boosts contrast so your eye locks onto the glowing green-and-orange front faster, and it keeps distractions down when you are running a red dot.
How long will the tritium stay bright?
Trijicon warranties the green tritium lamps for 12 years from the date of manufacture. Tritium glows on its own without batteries, so there is nothing to charge or replace. You will see gradual dimming over that span, which is normal for any tritium sight.
Can I install these Trijicon sights myself?
You can if you have the right tools, namely a sight pusher for the dovetailed rear and a way to secure the staked or screwed front. Trijicon recommends professional installation, and a gunsmith with a proper pusher makes quick work of it. Take care with the front sight screw, since they can be torqued down tight from the factory.





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