Meprolight FRBS Flip-Up Backup Sights, Flat Dark Earth
Meprolight FRBS self-illuminated flip-up backup sights with tritium front and rear. Low-profile polymer construction fits Picatinny rails. Tool-free elevation adjustment. Flat Dark Earth finish.
Meprolight FRBS Flip-Up Backup Sights
The Meprolight FRBS represents a proven approach to secondary sighting systems. These self-illuminated backup sights employ tritium technology to ensure visibility in low-light conditions when your primary optics may fail.
Design and Construction
The FRBS features a low-profile, lightweight design built from durable fiberglass-reinforced polymer and metal components. The sights flip into position quickly when needed and collapse flat when not in use. This practical design allows you to maintain a clean sight picture with your primary optics while keeping reliable backup sights ready.
Tritium Illumination
Four tritium vials are installed in the rear sight aperture, with one tritium vial in the front sight post. This configuration provides reliable self-illumination for extended periods without requiring batteries or external power sources.
Adjustment and Zeroing
- Elevation: Tool-free adjustment on both front and rear sights
- Windage: Detent knob on rear sight for precise windage correction
- Indexed Elevation Drum: Front sight includes an easy-to-adjust elevation drum
Compatibility and Features
- Compatible with all MIL-STD 1913 Picatinny rails
- Can serve as primary or backup sighting system
- Spring-based locking mechanism resists breaking or deformation
- 12-year warranty on tritium night sight luminance
- Mounts with included 2.5mm hex key
These sights deliver the reliability you need when it matters most.
Features
- mounting options: picatinny rail
- illumination: green tritium on front and rear, orange tritium on front
- flat dark earth
- windage adjustments in 0.5 moa
- elevation adjustments in 1.5 moa
- 4 rear dots, 1 front dot
