AmeriGlo GL815 Optic Compatible Sight Set for Glock - 3XL Tall Green Tritium Front & Rear Sights with Black Outline
- Firearm Group:
- Handgun
- Firearm Make Fit:
- Glock
- Firearm Fit:
- Glock Gen 1-5 (All models excluding 42,43,48)
- Front Color:
- Green/Tritium Black Outline
- Rear Color:
- Green/Tritium Black Outline
- Rear Material:
- Tritium
- Frame Material:
- Steel
- Front Material:
- Tritium
The AmeriGlo GL815 optic compatible sight set for Glock gives you a complete backup sighting solution engineered around modern red dot optics. If you're running a Glock MOS slide with a reflex sight—whether it's a Holosun 407C, 507C, 508T, Trijicon RMR, or EOTech EFLX—these 3XL tall sights keep you covered if your optic fails or you need to transition quickly. The elevated sight picture allows you to shoot through the optic window and co-witness precisely with your mounted red dot, so you're never caught flat-footed on the clock or in the field.
Built with case-hardened steel and green tritium lamps with white and black outlines, these sights are built to last and easy to acquire in low light. The 3XL height is AmeriGlo's tallest option—front blade measures 0.365 inches, rear 0.451 inches overall—so they rise well above most red dot profiles for unobstructed sightlines. Whether you shoot competition, carry for defense, or train hard at the range, having reliable iron sights you can trust beats fumbling in the dark.
The GL815 fits all Glock MOS models except the 42, 43, and 48, and installation is straightforward on the dovetail. These aren't fancy or complicated—they're purpose-built backup iron sights that work when it counts, from the optic rail to the holster.
Key Features
- Optic-compatible design with elevated co-witness for red dot sights
- Green tritium with white and black outline for fast low-light acquisition
- 3XL tall profile clears most mounted optics for through-the-window shooting
- Fits all Glock MOS slides (Gen 4/5, excluding 42, 43, 48)
- Compatible with Holosun 407C/507C/508T, Trijicon RMR/RMR HD/RCR, SRO, and EOTech EFLX
- Case-hardened steel construction for durability
- Two-dot rear sight with square notch
Specifications
| Brand | AmeriGlo |
| Model | GL815 |
| Fit | Glock MOS (Gen 4/5, excluding 42, 43, 48) |
| Size | 3XL |
| Front Sight Height | 0.365 in. (9.27 mm) |
| Front Blade Width | 0.125 in. (3.18 mm) |
| Rear Overall Height | 0.451 in. (11.46 mm) |
| Rear Blade Height | 0.371 in. (9.42 mm) |
| Rear Notch Width | 0.15 in. (3.81 mm) |
| Rear Notch Shape | Square |
| Front Sight Style | Tritium |
| Rear Sight Style | 2-Dot Tritium |
| Tritium Color | Green |
| Outline Color | White and Black |
| Finish | Case Hardened |
Frequently Asked Questions
Will the AmeriGlo GL815 work with my optic mounted on a Glock MOS slide?
Yes. The GL815 is specifically designed for optic co-witness on Glock MOS slides with mounted red dots. The 3XL tall height allows you to shoot through the optic window while maintaining a precise sight picture if you need to transition to irons. It's compatible with Holosun 407C/507C/508T, Trijicon RMR/RMR HD/RCR, SRO, and EOTech EFLX optics.
Which Glock models does this sight set fit?
The GL815 fits all Glock MOS models (Gen 4 and Gen 5) except the 42, 43, and 48. Confirm your pistol has an MOS slide before purchasing.
What makes the 3XL size different from other AmeriGlo sizes?
The 3XL is AmeriGlo's tallest offering. At 0.365 inches front and 0.451 inches rear overall height, it rises high enough to clear most mounted optics and deliver an unobstructed sight picture through the optic window. It's the right choice if you want your backup irons to stay visible above your red dot.
Are the sights visible in low light?
Yes. The front and rear sights use green tritium with white and black outlines, so they're visible in darkness without a light source and remain bright and contrasted in daylight.

