Patriot Optics Shapeshifter Reflex Red Dot Sight 8 Reticle. The large clear and crisp window provides edge-to-edge sharpness for both eyes open shooting providing unmatched peripheral vision and situational awareness. The crystal-clear glass is protected by a strong but light weight durable second layer aluminum housing protecting it from the harshest environments and handling. The Shapeshifter offers you 8 different tactical reticle patterns in both red and green illumination along with 5 different brightness levels each making it the most flexible holographic reflex sight on the market today. State of the art circuitry allows for easy simple and intuitive operation with simple push button controls complete with Smart Ret (built in brightness memory) that remembers your last brightness setting after the unit is powered off. The Shapeshifter utilizes a rechargeable and removable LIR 2032 lithium battery and charger as well as built in red and green LED charging status light; a standard 3V CR 2032 battery may also be used. Rugged and durable the Shapeshifter also utilizes a 21mm quick release mount complete with adjustable tension to provide the perfect fit when mounting to your picatinny or weaver mount on your firearm. If you are looking for a highly advanced holographic reflex sight that offers the ultimate combination of built-in options all contained in a rugged aluminum body that is designed for precise lightning-fast target acquisition that wont break the bank; the PATRIOT OPTICS Shapeshifter is for you. Specifications for Patriot Optics Shapeshifter Reflex Red Dot Sight: Manufacturer: Patriot Optics Color: Black Fabric/Material: Aircraft Grade Aluminum Magnification: 1 x Objective Lens Diameter: 39 mm Reticle: Red/Green Dot Illumination Type: LED Illumination Color: Green Red Brightness Settings: 5 Eye Relief: Unlimited Adjustment Type: MOA Adjustment Click Value: 1 MOA Emitter Type: Enclosed Battery Type: 2032 lithium Not Included Operating Temperature: -20 - 69 Celsius Weather Resistance: Yes Weight: 245 g Condition: New Red Dot Sights-Footprint: Not Applicable Mount Type: Weaver Attachment Type: Picatinny Weaver Features of Patriot Optics Shapeshifter Reflex Red Dot Sight 8 tactical reticle patterns Red and Green Illumination 5 variable brightness settings Smart Ret built in brightness memory State of the art electronic circuitry Simple push button operation Wide field of view Both eyes open shooting Windage / Elevation adjustment (with clicks) Compatible with magnifiers or NVGs Rugged aluminum construction Quick release 21mm mount with adjustable tension Low power consumption Battery DOES NOT need to be removed for charging) Package Contents: Patriot Optics Shapeshifter Reflex Red Dot Sight 1 x Lens Cloth 1 x Screwdriver 1 x Owners Manual 1 x Battery Charger and Cable Patriot Optics PO-RS-8: Shapeshifter Reflex Red Dot Sight 8 Reticle