Description
The Meprolight FUBS (Folding Back-Up Sights) are tritium-enhanced front and rear flip-up sights engineered to serve as secondary aiming references for AR-platform rifles. The set contains two tritium vials in the rear sight and one tritium vial in the front sight to provide self-illuminated reference points in low-light conditions. Constructed from a polymer/metal composite and finished in black, the sights mount to any 1913 Picatinny rail. Elevation and windage can be rapidly adjusted, and the sights fold down to a low-profile position when not in use.
Key Specifications
- The sights fit AR-15 platforms.
- The set mounts to a Picatinny rail (1913).
- The style is Flip Up for rapid deployment and low-profile stowage.
- The frame material is Polymer/Metal for a balance of weight and durability.
- The finish/frame color is Black.
- The front sight features Green Tritium illumination.
- The rear sight features Green Tritium illumination.
- The elevation adjustment is 26 MOA.
- The windage adjustment is 43 MOA.
- The tritium configuration is two in the rear, one in the front for consistent low-light reference.
The Meprolight FUBS set delivers a durable, low-profile backup sight solution with self-illuminated tritium references and straightforward, tool-free adjustments. Its quick-deploy folding mechanism and robust construction make it a practical choice for shooters seeking dependable auxiliary sights for AR-platform rifles.





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