Description
If you've thrown a suppressor or a red dot on your slim-frame Glock, standard-height sights disappear behind the can or sit too low to co-witness. That's exactly the gap this Trijicon set fills. These are elevated three-dot tritium iron sights that give you a usable sight picture in bright daylight and pitch dark alike, with a green front lamp wrapped in a high-visibility orange outline and a clean blank metal rear that lets your eye drive straight to the front dot.
What Makes the Suppressor/Optic Height Sights Different
The extra height is the whole point. Standard sights don't give you an aiming solution once a suppressor is mounted, but the taller profile here clears the can so you can still line up on target. That same height makes them ideal backup irons that co-witness through the window of a pistol-mounted red dot like the Trijicon RMR or RMRcc, so if your optic goes down or the battery dies, you're never left without sights.
Trijicon Tritium Built to Take a Beating
Trijicon's reputation is earned in the details. Each tritium lamp is sealed inside a protective aluminum cylinder and capped with a sapphire jewel that spreads the glow evenly while shrugging off solvents and punctures. The whole assembly rides on silicone rubber cushioning inside a machined steel body, so it keeps glowing through hard recoil and years of carry. The illumination is fully battery-free, and the green lamps carry a 12-year warranty from the date of manufacture.
Fitment for Slim-Frame Glocks
This set is cut for Glock slim-frame pistols, covering the 42, 43, 43X, 43E, and 48. It's a great match whether you're running a suppressor host, building an optic-ready carry gun, or just want dependable night sights that also work with the RMRcc plate. Trijicon recommends professional installation to get them seated and zeroed right, and it's worth doing since these are pressed into the slide dovetails.
Key Specifications
- Manufacturer: Trijicon
- Manufacturer Part Number: GL243-C-601146
- UPC: 719307620728
- Model: Suppressor/Optic Height
- Product Type: Night Sight
- Fits: Glock 42, 43, 43X, 43E, 48 (Slim Frame)
- Front Sight: Green Tritium with Orange Outline
- Rear Sight: Black / Blank Metal
- Sight Style: Square Notch
- Front Sight Width: 0.144 in
- Front Sight Height: 0.503 in
- Rear Sight Height: 0.554 in
- Body Material: Machined Steel
- Illumination: Battery-Free Tritium
- Warranty: 12-Year Green Lamp Warranty
- Optic Compatibility: Designed for use with RMRcc mounting plate
What’s Included
- Trijicon suppressor/optic height front sight
- Trijicon suppressor/optic height rear sight (blank metal)
Frequently Asked Questions
Will these Trijicon suppressor height sights co-witness with a red dot?
Yes, the taller profile is built to serve as backup iron sights that co-witness through a pistol-mounted optic like the Trijicon RMR or RMRcc. If your dot ever goes down or the battery dies, you still have a usable sight picture. They're designed for use with the RMRcc mounting plate on slim-frame Glocks.
Which Glock models do these sights fit?
This set fits Glock slim-frame pistols, including the 42, 43, 43X, 43E, and 48. They're a good pick for suppressor hosts and optic-ready carry builds on those frames.
Do the night sights need batteries to glow?
No batteries required. The illumination comes from tritium, which self-powers and glows on its own in low light. The green front lamp is warranted for 12 years from the date of manufacture.
Can I install these Trijicon sights myself?
Trijicon recommends professional installation since the sights press into the slide dovetails and need to be seated and zeroed correctly. A gunsmith with a proper sight pusher will get the front and rear set square and running true. Doing it right the first time saves you headaches at the range.





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