Xs Sight Systems R3D 2.0 Tritium Night Sights for Glock 21, Suppressor Height, Green Front and Rear Tritium with Green Front Outline

The R3D 2.0 Tritium Night Sight set is designed for Glock 21 pistols and features a suppressor-height configuration for use with threaded barrels and many slide-mounted optics. Engineered for defensive, duty, and concealed carry applications, these sights combine a highly visible green photoluminescent front sight with self-illuminated tritium inserts in both the front and rear sights. The Glow Dot front sight absorbs ambient light to enhance visibility in transitional and low-light conditions, while the serrated rear sight helps reduce glare and improve sight focus. Constructed from durable CNC-machined steel with a corrosion-resistant finish, the R3D 2.0 system delivers reliable performance in a wide range of shooting environments.

Product Features

• Designed for Glock 21 pistols.
• Suppressor-height sight configuration.
• Green tritium front and rear sight illumination.
• High-visibility green photoluminescent Glow Dot front sight.
• Glow Dot absorbs ambient light and glows in low-light conditions.
• Serrated rear sight minimizes glare.
• Wide rear notch promotes faster sight alignment and target acquisition.
• Rear sight ledge allows one-handed slide manipulation.
• Durable CNC-machined steel construction.
• Corrosion-resistant black finish.
• Optimized for defensive, duty, and everyday carry applications.
• Compatible with many optics-ready pistol setups.