Features a BDC Reticle for Precision: VOI-10BDC Second Focal Plane Reticle Compensates for Bullet Drop and Windage up to 650 Yards a Crisp, Wide Image: FMC Lens with Edge-to-Edge Clarity and Excellent FoV Plus 11-Level Illumination (1-Level Night Vision Included) a Optimized for Small Game Hunting: 6-24x Ideal for .22 LR, .25, .30; Side Focus from 10 Yards for Close-Range Shooting a Reliable Zero Retention: 1/4 MOA Zero Reset Turrets with Lock Function Prevent Accidental Adjustments a Lightweight 1" Tube Build: Compact 25.4mm Monotube Made of 6061-T6 Aluminum for Portability and Durability Relations Reticle Specification A Magnification: 6-24x A Objective Lens Dia.: 50mm A Ocular Lens Dia.: 38mm / 1.5 inch A Ocular Lens Length: 60mm / 2.4 inch A Exit Pupil: 8.3-2mm A Optics Coating: Fully-multi coat A Field of View: 15.8-4.0 feet@100 yds A Eye Relief: 105--100mm / 4.1-3.9 inch A Length: 360mm / 14.2 inch A Weight: 680g / 24.0 ounce A Tube Dia.: 25.4mm 1" Monotube A Click Value: 1/4 MOA A Elevation Range: 40MOA A Windage Range: 40MOA A Parallax Setting: 10 yards to infinite A Reticle: VOI-10BDC A Illumination: 10 levels red+ 1 level NV A Battery Type: CR2032 A BDC Reticle usage set at 10x power, big game, 22LR Rimfire and varmint rifles max to 600 yards range A Distance between objective lens part and middle turret: 58mm (2.3 inch) A Length of middle turret part: 37mm (1.5 inch) A Distance between middle turret part to power ring: 57mm (2.2 inch) A Side focus marks: 10, 15, 20, 50, 100, 200, 500 and infinite yds A Shock tested to 750g and water proof A Fully nitrogen purged to eliminate any fogging of the lenses internally A High quality 6061 T6 aircraft grade aluminum A Diopter compensation from fast-focus eyepiece (+2 to -2) A Including items: weaver rings (default) or dovetail rings, flip-up caps, sunshade and cleaning cloth etc. Compatible Gun Type For Small Game Hunting: FX Impact (.22 / .25 / .30), Walther / HW40, Ruger 10/22 (.22LR), Barra / HW, CZ 457 (.22LR), Tikka T1x (.22LR), etc.