Feature A Rapid Follow-Up and Ranging: FFP VIS-FMIL Etched Glass with Christmas Tree Reticle, Enabling Precise Holdover and BDC Ranging A Clear and Wide Target View: 44mm Objective with Fully Multi-Coated Glass Delivers Edge-to-Edge Clarity for Faster Target Acquisition A Secure and Reliable Adjustments: 1/10 MIL Clicks with 15 MIL Elevation Range and Turret Lock Ensure Repeatable Precision A Enhanced Close and Long-Range Precision: Side Focus from 15 Yards Eliminates Parallax, Optimizing Airgun Accuracy at Any Distance A Shooting Comfort: Power Ring Lever, Sunshade, and Large Side Wheel Improve Handling, Glare Control, and Ease Of Zoom adjustment Specification Magnification: 4-16x Objective Lens: 44mm Ocular Lens Dia: 35mm / 1.4 inch Ocular Length: 58mm / 2.3 inch Exit Pupil: 11.0-2.75mm Tube Diameter: 30mm Length: 315mm / 12.4 inch Weight (net): 518g / 18.3oz Eye Relief: 96mm / 3.8 inch Field of View (@100yds): 28.8-7.2 feet Optics Coating: Fully-multi coated Reticle: VIS-FMIL etched glass reticle Click Value: 1/10MIL Evaluation Range: 15MIL Windage Range: 15MIL Parallax Adjustment: 15 Yds to infinite Finish: Black matte Illumination: N/A Exclusive for air gun and .22 LR rimfire etc benchrest shooting and hunting Side focus knob marked 15, 20, 25, 30, 50, 75, 100, 200, 400, 600 yards to infinite Distance between objective lens part and middle turret: 45mm (1.8 inch) Length of middle turret part: 42mm (1.6 inch) Distance between middle turret parts to power ring: 52mm (2.0 inch) Shock tested to 750g, IPX4 water resistant and fully nitrogen purged Turret lock system. Pull to adjust, Depress to lock. High quality 6061 T6 aircraft grade aluminum Diopter compensation from fast-focus eyepiece -2 to +2 Including items: 30mm weaver rings (default) or dovetail ring (on request only), power ring lever, 3 inch sunshade, big side wheel, cleaning cloth, instruction, lens flip-up caps Reticle Service