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Ameriglo GL-817: Trooper for GLOCK(R) Gen1-4, G20, G21, G40 MOS
Our editorial team reviews specifications, product data, and field-use information to keep pages accurate.
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SKU: GL-817
Overview
Built for shooters who want a straightforward sight picture, this sight set uses a three-dot layout with a ProGlo front sight and a serrated square-notch rear. Green tritium is included for visibility in low-light conditions, making it a practical option for defensive use and other situations where quick alignment matters. It is designed to fit GLOCK Gen1-4, G20, G21, and G40 MOS pistols. This is a purpose-driven upgrade for users who value a simple, familiar setup without unnecessary complexity.
Why Hunters Choose the Ameriglo
Three-dot Sight
Design provides an instant sight
Includes Proglo
Front sight and green tritium
Serrated Square
Notch rear sight supports a
Fits Glock
Gen1-4, G20, G21, and G40
Built From
Ameriglo's U.S. Federal Government contract
Key Features
- Three-dot Trooper sight set for an instant sight picture
- Includes a ProGlo front sight and serrated square-notch rear sight
- Green tritium is included for visibility in low light
- Fits GLOCK Gen1-4, G20, G21, and G40 MOS models
- Based on Ameriglo’s U.S. Federal Government contract sight experience
Best Used For
- GLOCK Gen1-4 owners seeking a Trooper sight set for compatible G20, G21, or G40 MOS pistols
- Hunters and outdoorsmen wanting a three-dot sight picture for day and night use
- Users who prefer a ProGlo front sight with a serrated square notch rear sight
- Shooters looking for a sight upgrade suited to defensive carry and field readiness
- Owners replacing factory sights on compatible GLOCK pistols without changing the platform
Specifications
| Compatibility Disclaimer | This product is not manufactured, authorized, endorsed, or warranted by GLOCK. GLOCK does not warrant or represent that this product is compatible with GLOCK pistols |
|---|---|
| Fits | GLOCK Gen1-4, G20, G21, G40 MOS |
| Front Sight | ProGlo front sight |
| Model | GL-817 Trooper |
| Rear Sight | Serrated square notch rear sight |
| Sight Design | Three-dot |
| Tritium | Green tritium |
Pros
- Three-dot sight design provides an instant sight picture for faster alignment.
- Includes a ProGlo front sight and green tritium rear sight.
- Serrated square notch rear sight supports a clear, deliberate sight picture.
- Fits GLOCK Gen1-4, G20, G21, and G40 MOS models.
- Built from Ameriglo's U.S. Federal Government contract sight experience.
Considerations & Trade-offs
- Compatibility is limited to the listed GLOCK models: Gen1-4, G20, G21, and G40 MOS, so it is not a universal sight set.
- The three-dot layout is designed for a fast sight picture, but it may not suit shooters who prefer a different aiming reference.
- The rear sight uses a serrated square notch, which is a functional detail to consider if you have a strong preference for a different rear profile.
- The product notes a GLOCK compatibility disclaimer, so fit should be verified against the specific pistol model before purchase.
Suggested Comparisons
- Pistol sight sets
- Night sights
- GLOCK-compatible sight upgrades
- Handgun defensive accessories
Suggested Accessories
- Sight set for GLOCK Gen1-4, G20, G21, and G40 MOS
- Pistol sight installation tools
- Handgun sight pusher
- Gun cleaning kit
Frequently Asked Questions
What pistols does the Ameriglo GL-817 Trooper fit?
The product data says it fits GLOCK Gen1-4, G20, G21, and G40 MOS. GLOCK does not warrant or represent compatibility, according to the disclaimer.
What sight configuration does the Trooper set use?
It is a three-dot sight set with a ProGlo front sight and a serrated square notch rear sight with green tritium.
Is this sight set intended for low-light use?
The description says it is designed to provide an instant sight picture and is meant to be used "night and day." It also includes green tritium in the rear sight.
Does Ameriglo claim this is a factory GLOCK sight?
No. The product disclaimer states it is not manufactured, authorized, endorsed, or warranted by GLOCK.
What should I know before ordering this sight set for a GLOCK pistol?
The listed fitment is GLOCK Gen1-4, G20, G21, and G40 MOS, but the disclaimer says GLOCK does not warrant or represent compatibility. It is worth confirming your specific pistol setup before purchase.