You can expect a high quality, great performing sight built to withstand extreme operation and hostile conditions. Made to withstand the toughest of them, these sights will show you a sight that's built to endure and win every time. This is all possible because of the well thought out design of the Sight. Finely machined from a block of top-quality steel, the Sight features dual reticles with a notch on the inner part of the ring allowing for proper front to rear sight alignment. The notch is made from a special hardened steel that ensures it will not break when impacted by the most extreme of recoil. With the raised rear ring the sight picture is greatly enhanced, increasing the shooters visual FOV. This also prevents the sight from being impeded by an overly tight front sight base. With the included pin both front and rear flip-up sights are spring-loaded, which allows the sight to flip up instantly as needed during use. Installation is made easy with the included pin removal tool. Sights install in just seconds using the included pin removal tool. Specifications for FAB Defense Top Mounted Deployable Front and Rear Sight for Right Hand: Manufacturer: FAB Defense Condition: New Sight Mounting Orientation: Top Mounted Sight Position: Front and Rear Gun Model: M16, M4, AR-15 Gun Make: AR Platform Deployable: Yes Illumination Type: Non-Illuminated Illumination Color: None Hand: Right Mount Type: Picatinny Features of FAB Defense Fron and Rear Set of Offset Flip-Up Sights: Sleek design with minimal protruding parts No tools needed for a quick and easy elevation and wind adjustment RBS – Rear Back-up sight can be manually adjusted for windage FBS – Front Back-up sight can be manually adjusted for elevation Durable fiberglass reinforced polymer and metal construction Package Contents: FAB Defense Front And Rear Set of Offset Flip-Up Sights, Right Hand This product is compatible with the following gun models: AR-15, M4, M16