Element Optics Iris 3-9x40, SFP Duplex Iris MOA Reticle, 1" Tube 3-9x magnification range Objective diameter: 40mm Duplex Iris Reticle Eye Relief: 101.6mm (4") Exit Pupil: 13.3-4.4mm Field of View: 34.6ft - 11.6ft @100yds Click Value: 1/4 MOA Fixed 100 yard parallax Adjustment per Rotation: 12 MOA Elevation Adjustment Range: 80 MOA Windage Adjustment Range: 80 MOA Length: 12.1" (308mm) Weight: 14.7oz (416g) Aircraft Grade One-Piece 1" Main Body Tube Advanced Fully Multi-Coated Lenses Waterproof Fogproof Shockproof Nitrogen purged Includes lens caps and warranty