Description
When you mount a red dot on a Glock or run a suppressor, standard iron sights disappear below your line of sight. The AmeriGlo GL815 solves that with a 3XL suppressor-height design that raises the whole sight picture so you can co-witness through most slide-mounted optics and see over a can. It runs a green tritium front dot and two green tritium rear dots, all wearing a clean black outline with no distracting paint, so your eye goes straight to the glowing reference points when the light drops.
What Makes the GL815 a Solid Optic Companion
Think of these as a safety net that also does day-to-day work. If your red dot ever fails, fogs up, or the battery dies, you still have a full set of usable irons lined up right under the window. The tall geometry co-witnesses nicely with Glock MOS slides and popular optic footprints like the Holosun 407/507/508T, Trijicon RMR and SRO, and EOTech EFLX. The tritium is Swiss made and glows on its own without needing a charge, so they're ready any time of day or night.
Fit and Build of the AmeriGlo GL815
The set is CNC machined from steel with a matte black finish, so it holds up to holster wear and hard use. Up front you get a .365 inch tall blade, and the rear stands .451 inch tall with a .150 inch square notch, which is the right height range to clear suppressors and co-witness a mounted dot on Gen 4 and Gen 5 MOS pistols. It covers a wide swath of the Glock lineup across Gen 1 through Gen 5, with the exception of the 42, 43, 43X, and 48.
AmeriGlo has built a reputation with law enforcement, military, and everyday carry folks for a reason, and the GL815 carries that same no-nonsense approach. A sight pusher and a little know-how make install straightforward, and once they're dialed in you've got a rugged, always-on aiming solution backing up your glass.
Key Specifications
- Manufacturer: AmeriGlo
- Manufacturer Part Number: GL815
- UPC: 644406911470
- Style: Optic-Compatible / Suppressor Height
- Size: 3XL Tall
- Front Sight: Green Tritium with Black Outline
- Rear Sight: 2-Dot Green Tritium with Black Outline
- Tritium: Swiss Made
- Front Blade Height: 0.365 in (9.27mm)
- Front Blade Width: 0.125 in (3.18mm)
- Overall Rear Height: 0.451 in (11.46mm)
- Rear Notch Width: 0.150 in (3.81mm)
- Rear Notch Shape: Square
- Material: CNC Machined Steel
- Finish: Matte Black
- Fits: Glock Gen 1-5 (excludes 42, 43, 43X, 48); fits MOS slides
What’s Included
- AmeriGlo GL815 3XL tall front sight
- AmeriGlo GL815 3XL tall rear sight
Frequently Asked Questions
Will the AmeriGlo GL815 co-witness with my red dot?
Yes, the 3XL suppressor height is built to give an elevated co-witness picture on Glock MOS slides. It plays well with common optic footprints including the Holosun 407/507/508T, Trijicon RMR and SRO, and EOTech EFLX. Exact co-witness position can vary slightly by optic and mounting height, so it's worth confirming your specific dot's window height.
Which Glock models does the GL815 fit?
The GL815 fits the vast majority of the Glock lineup across Gen 1 through Gen 5. The exceptions are the Glock 42, 43, 43X, and 48, which use a different sight setup. It's a great match for MOS pistols and slides set up with an optic or suppressor.
Do these sights need batteries or charging to glow?
No. The green tritium inserts are self-luminous and glow on their own without any battery, charging, or exposure to light. Swiss-made tritium gives you a consistent low-light reference the moment you draw.
Can I install the GL815 myself?
Many people do install these at home, though a proper sight pusher tool makes the job much cleaner and safer for the slide. The rear dovetails in and the front typically uses the standard Glock front sight screw. If you're not comfortable pressing sights, a gunsmith can knock it out in a few minutes.





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