ATHLON SCOPE HELOS BTR G2 34MM 6-24X56 SF IR APRS6 MIL FFP FEATURES: Magnification 6-24 Objective Lens Diameter 56 mm Reticle APRS6 FFP IR MIL, Glass Etched Surface Finish Matte Lens Coating Wide Band Fully Multi-Coated Extra Coating Xtra Protective Coating Tube Material Aircraft Grade Aluminium Tube Diameter 34 mm Eye Relief 3.7 inches Field of View @100 yards 19.9-5.12 feet Click Value 0.1 MIL Adjustment range per rotation 10MIL Total Elevation Adjustment 29MIL Total Windage Adjustment 25MIL Turret Style Exposed Parallax Adjustment Side Focus – 10 yards to infinity Purging Material Argon Length 14.3 inches Weight 34.5 ounces