Description
The AmeriGlo GL391 sight set is an optic-compatible, XL Tall suppressor-height sight package engineered to provide a clear elevated co-witness for slide-mounted red dot optics and suppressors. The front sight uses a green tritium insert with a LumiGreen outline for low-light visibility, paired with a green tritium i-dot rear in a black steel frame. Designed to serve as durable, reliable backup sights while coexisting with popular optic footprints, this set fits Glock Gen 1–5 firearms and MOS slides.
Key Specifications
- The height is XL Tall to provide an elevated co-witness with slide-mounted optics and suppressors.
- The front insert is Green/Tritium with a LumiGreen outline for improved low-light sight picture.
- The rear configuration is an i-dot design with a Green/Tritium insert.
- The sight frame is made from Steel with a Black finish.
- These sights are intended for Pistol use and as backup/co-witness sights.
- Fitment is specified as Glock Gen 1–5, including MOS slides.
- Compatibility includes Aimpoint Acro, Holosun 509T, and Steiner MPS footprints.
- The front/rear configuration provides a precise elevated sight picture for optic co-witness and backup sighting.
- Finish and materials are specified as black steel frame with tritium inserts.
Robust and purpose-built, the GL391 XL Tall sight set blends low-light visibility with optic compatibility to support practical use on the range, in duty roles, or for everyday carry setups that employ slide-mounted red dots. Its tritium illumination and steel frame deliver a dependable, repeatable sight picture without adding unnecessary complexity.





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