High quality aircraft grade aluminum alloy， shock proof， fog proof， water resistant ideal for military-law enforcement-hunters. Integral Weaver-Picatinny Rail Base for easy mount on guns with a Weaver-Picatinny Rail Unlimited eye relief. Multi-Coated lens. Coated lens. Type III anodized matte black finish. Windage & elevation adjustments. Wide sharp field of view. Specification: Power: 1X Obj.aperture: 1.3'' Field o.V.: 15.8m@100m Output: 1mw Battery: 1xCR2032 Housing Size: about 3.2'' x 2.1''X 2'' Reticle seletor Tube diameter: 1.3'' Switch & Stepless Intensity control Red Laser: Wavelength: 650nm Material: aircraft grade aluminum alloy