Meprolight FUBS Tritium Front And Rear Back Up Sights, Black - 404100

The Mepro FUBS are tritium-enhanced, self-illuminated front and rear back-up sights designed to provide the shooter secondary sights in case the primary optics go down.The advanced Mepro FUBS sights are low-profile and extremely durable. Quickly and simply flip them into position when needed. Mepro FUBS sights mount to any Picatinny rail using 2.5mm Hex key (provided). Sight pin elevation is easily adjusted without tools. Day or night, the tritium makes the Mepro FUBS a viable option.Getting on Target: The MEPRO FUBS offer the most reliable illumination for day or night. Premium grade tritium vials make your FUBS visible in low-light and nighttime conditions. Both rear and front tritium source appear green in low-light and nighttime. The nighttime illumination is designed to be bright enough to see them but not too bright to impact sight picture; always producing light and always ready 24/7 for 12 Years.High Durability: The fiberglass reinforced polymer and metal construction of the sights houses the high grade tritium vial which provides the illumination, allowing you to confidently engage targets day or night. A spring-based locking mechanism allows you to quickly flip them into place when needed.Easy to Adjust: The detent knob on the rear easily adjusts windage, and the front sight includes an indexed, easy to adjust, elevation drum. No tools required for zeroing. Windage: Each click in windage will move the bullet 0.5 MOA.Elevation: Each click of elevation will move the bullet 0.25 MOA.- 12-year guarantee for tritium illumination.