The NcSTAR MARDRS AR-15 Detachable Rear A2 Iron Back-Up Sight offers unmatched durability and precision for serious marksmen. Tailored for the AR-15, this dual aperture rear sight adapts seamlessly to various shooting scenarios, enhancing your accuracy with its fixed A2 design. Weighing only 5.1 ounces and measuring 2.7 inches, this lightweight sight combines robust aluminum and steel construction, ensuring reliability under demanding conditions. Its simple installation on Weaver and Picatinny rails makes it a versatile addition to any setup. Dual aperture system for versatile shooting Lightweight design at 5.1 ounces Fixed A2 design for reliability Adjustable windage and elevation Compatible with Weaver and Picatinny rails Upgrade your shooting arsenal with the NcSTAR MARDRS, combining quality craftsmanship with practical functionality.