The UTG Super Slim Fixed Rear Sight features an A2 dual aperture design with a 6/3 drum offering precise windage and elevation adjustments. It is made from precision CNC-machined 6061-T6 aircraft aluminum with a steel A2 sight assembly combining durability with a lightweight profile. The matte black finish is wear-resistant ensuring long-term reliability in rugged conditions. This rear sight is tool-free for easy adjustments and is optimized for a range of shooting scenarios. It allows adjustments for vertical canting angle to compensate for .223rem ballistic characteristics and bullet drop. The sight is securely mounted to MIL-STD-1913 Picatinny rails using a single locking Torx screw and square-shaped integral recoil stop ensuring a secure zero hold and the ability to return to zero after removal. Its a durable versatile rear sight for precision shooting.