Advance Dual Optic (ADO) 3X-9X variable magnification scope with a 42mm objective lens. The ADO Scope features an integrated Red Dot Reflex Optic on top of the scope body. The Red Dot Reflex lens folds down when not in use and with a push of a button the Reflex Lens flips up to the deployed position and automatically turns the Red Dot reticle On. When the Reflex Lens is folded down to the stored position, the Red Dot automatically turns Off. The Electronic Control Panel is placed on top of the scope for Ambidextrous use. You can turn On/Off the Illuminated Reticle, adjust the brightness level of the Illuminated Reticle, change select the Reticle Color from Blue or Red, and adjust the Red Dot brightness level. There are five brightness settings for the Illuminated Reticle and the Red Dot. ew GEN3 Integrated Auto Locking Quick Release Mount, fits Weaver/ Picatinny/ MIL-STD 1913 type rails. Uses 1 CR123A Lithium Type Battery (Included) for a long battery life.