The NcStar Mark III Tactical Series 3-9x42mm Rifle Scope is great for all types of tactical situations. It includes green and blue illumination, with multiple brightness settings for each color. The riflescope is fog, water and shock proof with fully multi coated lenses. It also features an improved Locking Quick Release mount and Scope Centerline height, raised to AR15's 1-1/2 inches scope height. Scope has lowered BDC Turret height, for lower mounting height for the optional 34mm Micro Dot mount and optic. New improved - locking quick release mount and a more compact QR Lever New improved - scope centerline height raised to AR15 1-1/2 inches scope height and more room for low-profile Rear BUIS New improved - lowered BDC Turret height, for lower mounting height for the optional 34mm New - blue and green color illuminated reticle, with multiple brightness settings for each color 100 to 500 yd Bullet Drop Compensator (BDC) calibrated for M193 55 grain FMJ Mil-Spec ammo Quick focus eyepiece Fully multi-coated lenses Integrated slant cut sun shade Includes lens covers and batteries Micro dot mount and optic