The Tippmann Arms Flip-Up Sights are a high quality, color injection molded, folding sights. The dual aperture Rear Sight is adjustable for windage, the Front Sight is adjustable for elevation without tools and fits most 1913 Picatinny rail equipped guns, but is specifically tailored to the AR15/M16 platform. These sights come standard on the M4-22. Military Standard 1913 Spring Loaded Design Adjustable without tools