Magnification: 4.5-18x Objective: 44mm AO Field of View: 5.30 - 21.20 ft @ 100 yds Eye Relief: 4" - 3.60" Tube Diameter: 1" Length: 13.80" Weight: N/A Reticle: Dual Illuminated Green/Red BDC-8 Parallax Adjustment: 10 yds-Infinity Exit Pupil Range: N/A Proofs: Fog/Shock/Waterproof Coating Type: Waterproof, Fogproof, Shockproof Optic Coating: Fully Multi-Coated Optic Coating: Fully Coated