The Marble Arms White Tritium Bead Sight provides enhanced target acquisition for shotgun shooters with self-illuminating tritium technology that glows in low-light conditions.Marble Arms White Tritium Bead SightWhite tritium insert for visibility in dim lightingUniversal design compatible with most shotgunsDurable construction for reliable performanceSKU: 064823 | UPC: 871373005516Ideal for hunting tactical applications and home defense where quick sight acquisition is critical in various lighting conditions.