Description
When you thread a suppressor onto your Glock or bolt an optic to the slide, your factory sights suddenly can't see over the extra hardware. That's exactly what these Trijicon Suppressor/Optic Height Night Sights fix. The taller front blade and rear notch clear the added profile of a can so you can still line up a proper sight picture, and they double as backup irons that co-witness with a slide-mounted red dot like the Trijicon RMR. This is the white front, white rear configuration with green tritium in all three dots, cut for the slim-frame Glock 42, 43, 43X, 43E, and 48.
What the White Dots and Green Tritium Bring to the Table
The three-dot layout keeps things fast and familiar. White painted rings frame each dot so they stand out in bright daylight, then the green tritium takes over in low light and total darkness with a battery-free glow. No switches, no charging, no worrying about a dead cell when you need the gun most. Trijicon backs the green lamps with a 12-year warranty from the date of manufacture, so you get a long service life out of the glow.
Built Like Every Other Trijicon Night Sight
These carry the same tough guts that made the Bright & Tough line a standard with law enforcement. Each tritium lamp sits inside a protective aluminum cylinder with silicone rubber cushioning to soak up recoil, and a sapphire jewel caps the vial to spread the light evenly while shielding it from cleaning solvents. Real-world users report these staying zeroed through hundreds of rounds without shifting, which is what you want out of a defensive or duty setup.
Fitment and Installation Notes
They drop into the standard Glock dovetail, so the slide cut is the same as any other Glock sight. Because the rear can seat tight and the vials are fragile, a proper sight pusher is the way to go rather than a punch and hammer. Expect a slight upward point-of-impact shift from the added height and plan to confirm zero after install. If you don't have the tools, a gunsmith can knock this out quickly.
Key Specifications
- Manufacturer: Trijicon
- Manufacturer Part Number: GL243-C-601140
- Model: Suppressor/Optic Height
- UPC: 719307620667
- Product Type: Night Sight
- Front Sight: White Outline / Green Tritium
- Rear Sight: White Outline / Green Tritium
- Rear Notch Style: Square Notch
- Fits: Glock 42, 43, 43X, 43E, 48
- Configuration: Three-Dot
- Lamp Construction: Aluminum cylinder with silicone rubber cushioning, sapphire jewel cap
- Tritium Warranty: 12 years from date of manufacture (green lamps)
- Optic Compatibility: Backup irons for Trijicon RMR / RMRcc
What’s Included
- Front sight
- Rear sight
- Front sight mounting screw
Frequently Asked Questions
Which Glock models do these suppressor height sights fit?
This set is cut for Trijicon's slim-frame lineup, covering the Glock 42, 43, 43X, 43E, and 48. They seat in the standard Glock dovetail, so the slide cut matches other Glock sights. Just make sure your slide is one of these slim-frame models before ordering.
Can I use these as backup iron sights with a red dot?
Yes, that's a big part of the design. The added height lets them co-witness with a slide-mounted optic like the Trijicon RMR or RMRcc, so if your dot goes down or the battery dies you still have a usable sight picture. That backup role is one of the main reasons folks step up to suppressor/optic height sights.
Do the tritium dots need batteries, and how long do they last?
No batteries at all. The green tritium provides a self-powered glow that works in low light and total darkness with nothing to charge or switch on. Trijicon warranties the green lamps for 12 years from the date of manufacture, so you get plenty of glow before they gradually dim.
How hard are these to install?
They install like any Glock sight, but the rear can seat tight and the tritium vials are fragile, so a dedicated sight pusher is strongly recommended over a punch and hammer. Because the taller sights raise your point of impact slightly, plan to confirm zero at the range afterward. If you don't own the tools, most gunsmiths can install a set quickly.





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