GEN3 Mark III Tactical 3-9X40mm scope Top of the Die Cast Aluminum body is pre-drilled for the optional NcSTAR Micro Dot Reflex Optic. The Electronic Control Panel turns On/Off the Illuminated Reticle, adjust the brightness level of the Illuminated Reticle, changes the Reticle Color from Blue or Red. There are five brightness settings for the Illuminated Reticle. The Mark III Tactical whole Ocular body functions as a large Magnification ring. There is also an adjustable reticle focus ring at the end of the ocular lens. Low Profile Elevation Turret with a Bullet Drop Compensator (BDC) calibrated for M193 55gr. FMJ Mil-Spec ammo. 1½” Scope Centerline height. New GEN3 Integrated Auto Locking Quick Release Mount, fits Weaver/ Picatinny/ MIL-STD 1913 type rails. Features a redesigned and more compact lever. Fully Multi-Coated lens for a bright crystal clear image quality. Die Cast Aluminum Body with powder coated Tan body. Uses 1 each AA Battery (Included)