The AmeriGlo GL691 3XL is an optic-compatible tall sight set designed to work with slide-mounted red dot optics and MOS-style slides. This front/rear pair combines a green tritium front with a Lumigreen outline and a flat black rear to provide a clear sight picture across lighting conditions. It is intended for use on Glock MOS slides and lists compatibility with common red-dot footprints. Constructed with steel components and tritium elements, the set functions as a dependable backup sight solution for range and duty use.
Key Specifications
- The manufacturer is AmeriGlo.
- The model designation is GL691 (3XL Tall).
- The front sight is a green tritium with Lumigreen outline.
- The rear sight is a flat black rear with tritium.
- The style is Optic-Compatible.
- Frame material is steel.
- Intended to fit Glock MOS slides.
- Compatible footprints include Trijicon RMR/SRO, Holosun 407/507/508T, EOTech EFLX.
- The product type is a front/rear sight set.
The GL691 3XL provides elevated co-witness height for slide-mounted red dots while maintaining durable construction and visible tritium illumination, making it a practical upgrade for Glock MOS slides used in range, carry, or duty applications.
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