Locking Quick Release mount and a more compact QR Lever. Scope Centerline height raised to AR15 1? scope height and more room for low profile Rear BUIS. Improved: Lowered BDC Turret height, for lower mounting height for the optional 34mm Micro Dot mount and optic. Blue & Green Color Illuminated reticle, with multiple brightness settings for each color. 100-500 yard Bullet Drop Compensator (BDC) calibrated for M193 55gr. FMJ Mil-Spec ammo. Quick Focus Eyepiece. Fully Multi Coated Lenses. Integrated Slant Cut Sun Shade. Black Anodized Aluminum Body. Includes lens covers and batteries.