The Barska 4x32mm IR Contour External Turret Rifle Scope with Rings by Barska is a compact rifle scope that offers maximum versatility and pairs great with both hunting rifles and modern sporting rifles such as the AR-15. An Illuminated Reticle (IR) in the Mil-Dot pattern can be switched between red or green illumination with adjustable brightness settings. The 4x32mm IR Contour External Turret Rifle Scope with Rings comes equipped with a set of Picatinny/Weaver Style scope rings and external adjustable windage and elevation turrets. FeaturesGreen & Red IlluminationAdjustable Reticle BrightnessIntegrated Sunshade with Contoured BellIncludes Weaver Rings and Lens Covers