The L8BUIST serves as an ideal backup solution for users whose primary sighting system is a red dot or variable power optic. The L8JT rear sight offers windage-only adjustments and flip apertures for straightforward operation. These robust sights from LMT Defense are designed with a low-profile and are compatible with both 5.56x45mm and 7.62mm caliber rifles. Constructed from steel, they ensure durability and reliability when a backup sighting system is needed. LMT Defense flip-up battle sights are durable, precision-engineered backup iron sights for AR-platform rifles chambered in 5.56x45mm and 7.62mm Engineered to military-grade specifications, these sights ensure dependable target acquisition and precise aiming for both primary and backup roles