Aircraft aluminum construction, one-piece tube built with hard anodized, black matte finish, Scratch resistant Fully multi-coated optics Fast Focus Eyepiece/Eyeball well suited for wide range shooting, with high optical clarity at 6-24 times magnification and a 50mm objective diameter. Allow for quick acquisition of close quarter and fast moving targets 11 level RGB tri-illuminated, RXR reticle, Waterproof & Fog-proof and Shockproof Level bubble, electronic button switch, flip up lens cover, front AOL Dimension: 2.3*2.3*14.5: 23.8 oz