XS Ghost Ring hunting sights allow for quicker acquisition of targets and help to improve accuracy. The aperture is adjustable for windage and elevation. This type of sight is great if you hunt in brushy or heavily forested areas. Windage is adjusted by opposing windage screws. Provides 14" of adjustment at 100 yards based on a 24" sight radius. Elevation is adjusted by loosening one windage screw and turning the rear aperture clockwise or counterclockwise to move the aperture up or down. Stem of aperture is threaded. Each 180 degree turn of the aperture moves the bullet point of impact 1" at 100 yards. Sight provides 16" of adjustment at 100 yards based on a 24" sight radius. Includes screws and thread locker, both .230" and .191" inside diameter rear apertures. FeaturesPrecision Engineering: Machined with precision tolerances for secure fitEasy DIY Installation: Match the existing screw holes in compatible modelsDurable Construction: Steel sights/aluminum rail hard coat anodized ...