The Holosun AEMS CORE features our G2 MOA Dot reticle System with Shake Awake technology. Holosun's Shake Awake Technology shuts the LED off during periods of motionlessness. The amount of time it takes for the LED to deactivate (enter Sleep Mode) is user programmable. The housing is made from pressure forged aluminum and is black anodized for durability. Includes Lower 1/3 Co-witness mount, multi tool, battery and lens cloth.Specifications: Model AEMS Color Black Anodized Reticle Illuminated Green Dot Material Aluminum Mount Type Lower 1 / 3 Co-Witness Wavelength 540nM Adjustment Size .50 MOA Brightness Settings 10 Day / 2 Night Eye Relief Unlimited Battery CR2032 Windage Adjustment 50 MOA Proofs Impact / Weather Resistant / Waterproof Parallax Adjustment Parallax Free Battery Life 50,000 hrs Bulb Type LED Dot Size 2 MOA Elevation Adjustment 50 MOA Includes Battery / Lens Cloth / Mount / Multi Tool Optic Coating Multi-Coated Weight 3.90 oz Features Lower 1 / 3 Co-Witness Mount Windage Elevation Adjustable