Description
Slap a can or a mini red dot on your slim-frame Glock and your factory sights suddenly disappear behind the hardware. That is the exact problem these Trijicon Suppressor/Optic Height Night Sights were built to solve. They ride tall enough to give you a clean, usable sight picture over a suppressor, and they double as backup irons when you are running a slide-mounted optic. This set covers the Glock 42, 43, 43X, 43E, and 48, with a white-outline front over green tritium and a clean metal rear in a square-notch layout.
What Makes These Trijicon Suppressor/Optic Sights Tick
Up front you get a tritium phosphor-filled glass lamp that glows on its own, no batteries and no charging required, so you have a visible aiming point in the dark or on a moonless night. Trijicon caps each lamp with a sapphire jewel that spreads the light evenly and adds a layer of protection against punctures and cleaning solvents. The lamp itself sits inside a protective aluminum cylinder with silicone rubber cushioning, which is the kind of build that shrugs off years of recoil. In daylight, the white ring around the front lamp gives your eye something bright to track fast.
Running These Behind a Red Dot
These are designed to work with the RMRcc mounting plate and co-witness through Trijicon RMR-footprint optics, so if your dot ever washes out or the electronics quit, your irons are right there waiting. That backup-iron versatility is a big part of why folks reach for this set on a carry or range gun that wears an optic. The added height is what clears both a suppressor and the taller bore axis, and it keeps the profile reasonable on a compact slide.
Getting Them On Your Slide
These are precision steel sights that install into the standard dovetail cut. Trijicon recommends professional installation, and a sight pusher plus a front sight tool makes the job painless if you tackle it yourself. The green tritium lamps carry a 12-year warranty from the date of manufacture, so you are covered for the long haul.
Key Specifications
- Manufacturer: Trijicon
- Manufacturer Part Number: GL243-C-601144
- Model: Suppressor/Optic Height
- UPC: 719307620704
- Fits: Glock 42, 43, 43X, 43E, 48
- Front Sight: White Outline / Green Tritium
- Rear Sight: Metal, Green Tritium
- Rear Notch Style: Square
- Illumination: Tritium Phosphor-Filled Glass Lamp
- Lamp Color: Green
- Construction: Machined Steel
- Optic Compatibility: RMRcc Mounting Plate / RMR Footprint Co-Witness
- Warranty: 12-Year Tritium Lamp Warranty
- Country of Origin: Made in USA
What’s Included
- Front sight (white outline / green tritium)
- Rear sight (metal, green tritium)
Frequently Asked Questions
Will these Trijicon suppressor height sights fit my Glock 43X or 48?
Yes. This set is cut for the Glock slim-frame lineup, covering the 42, 43, 43X, 43E, and 48. They drop into the standard dovetail on those slides.
Can I use these as backup iron sights under a red dot?
That is one of the main reasons people buy them. The taller profile is designed to co-witness through Trijicon RMR-footprint optics and works with the RMRcc mounting plate, so if your dot goes down you still have a usable sight picture. They also clear most pistol suppressors.
Do these night sights need batteries?
No. The tritium lamps glow on their own using a phosphor-filled glass lamp, so they light up in the dark without any batteries or charging. The green lamps are warranted for 12 years from the date of manufacture.
Should I install these myself or have a gunsmith do it?
Trijicon recommends professional installation. If you have a sight pusher and a front sight tool you can handle it at home, but a gunsmith will get you a clean, properly aligned fit without stressing the steel.





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