Made from aircraft-grade aluminum alloy, 1 pc construction, this waterproof scope will last for years to come. CenterPoint 1x25 Tactical Scope: * Multi-coated lens with Advantage solution * Razor shape image quality * 100 percent waterproof, fog and shock-proof * Key specifications: * Parallax setting: 75 yd * Nitrogen filled * Magnification: 1x * Reticle: 4 * Objective: 25mm * Illumination reticle: red/green adjustable brightness * Tube diameter: 30mm * Click value: 1 * Field of view: 33" at 100 yd * Eye relief: flex * Exit pupil: 20.5mm * Length: 5.83" * Material: aircraft-grade aluminum alloy; 1pc construction * Color: matte black, non-reflective finish * Requires CR2032 (3V) battery (included)