XS Sights R3D 2.0 Night Sights – Glock 21 Suppressor Height, Orange Front

The XS Sights R3D 2.0 night sights deliver bright tritium illumination for low-light shooting with suppressor-height clearance. The orange front sight ring provides rapid target acquisition in daylight, while the tritium lamp glows green in darkness. Designed for shooters running slide-mounted optics or suppressors on Glock 21 pistols who need a taller sight picture.

CNC-machined from steel with a defensive rear notch profile, these sights offer co-witness capability with most red dot optics. The front sight's orange photoluminescent ring absorbs ambient light for enhanced visibility in transitional lighting. Factory tritium lamps are rated for 10+ years of constant illumination. Installation requires sight pusher tool or gunsmith fitting. Suppressor height allows clear sight picture over threaded barrels and most pistol optics.

• Type: Tritium Night Sights, Suppressor Height
• Front Sight: Green Tritium with Orange Photoluminescent Ring
• Rear Sight: Green Tritium with Defensive Notch
• Tritium Lifespan: 10+ Years
• Compatible Firearm: Glock 21
• Height: Suppressor Height (Co-Witness with Optics)
• Material: CNC-Machined Steel
• Installation: Requires Sight Pusher or Gunsmith