XS R3D 2.0 Suppressor Height Night Sights for Glock 21

XS R3D 2.0 Suppressor Height Night Sights

The second-generation R3D 2.0 represents a significant advancement in night sight technology. These sights are engineered to deliver brighter, more reliable illumination while requiring 50% less installation force than previous generations—a practical benefit for shooters who prefer to install their own sights.

Key Features

• Dual-illumination system: Tritium front and rear with high-contrast glow dots, plus photoluminescent material that absorbs ambient light for low-light visibility
• Fast-acquisition design: Orange front outline with serrated, blacked-out rear sight minimizes glare and drives focus downrange
• Durable construction: Black Nitride corrosion-resistant finish withstands years of everyday carry and training use
• Traditional sight picture: 3-dot tritium notch and post configuration familiar to most shooters
• Wide rear notch: Serrated edges and anti-reflective lens reduce reflections and improve sight alignment

Compatibility

These suppressor-height sights fit Glock models 20, 21, 29, 30, 30S, 37, and 41 across all generations (Gen 1-5), including MOS-equipped models. The elevated height accommodates mounted optics and suppressors without obstruction.

Performance

The R3D 2.0 delivers the brightest notch-and-post sight picture available for fast, accurate shooting in both bright daylight and low-light conditions. Whether you're training at the range or carrying for personal defense, these sights provide the visibility and reliability serious shooters demand.