This backup plan is always in sight.
The Mepro FRBS is a tritium-enhanced set of sights – two or four smaller tritium vials, depending on the model, are firmly inserted on the large aperture side of the rear sight.
The self-illuminated front and rear backup sights are designed to provide the shooter with secondary sights in case the primary optics go down. The Front Sight post elevation is easily adjusted without tools.
Day or night, the tritium makes the Mepro FRBS a viable option.