HK21 Complete Rear Sight Assembly, precision-engineered for the HK21 machine gun, high-quality construction for durability and reliability, ensures accurate sighting for long-range shooting, easy to install and adjust, designed to withstand harsh conditions, ideal for military, law enforcement, and tactical applications, perfect for upgrading or replacing your existing rear sight, enhances overall firearm performance, built to last with robust materials, essential for maintaining or optimizing your HK21 rifle.
Includes Phillips head mounting screw w/oval washer and sight adjustment screw.