Feature A Fast Targeting and Range Estimation: VOW-10BDC Reticle Speeds Up Aiming, Ideal for Varmint Hunting A Bright and Clear Images: 40mm Objective with Fully Multi-Coated Lens Improves Clarity for Forest Hunting A Comfortable and Flexible Shooting: 108-98mm (4.2-3.9") Eye Relief Supports Different Positions with Awareness A Lightweight and Easy to Carry: Compact 25.4mm (1") Monotube Design Reduces Load for Effortless Aiming A Parallax-Free Accuracy: Adjustable Objective (AO) Min from 10 Yards Eliminates Parallax and Ensures Sharp Focus Related Product Specification A Magnification: 4-12x A Objective Lens Dia.: 40mm A Ocular Lens Dia.: 34mm / 1.3 inch A Ocular Lens Length: 61mm / 2.4 inch A Exit Pupil: 10.0-3.3mm A Optics Coating: Fully-multi coat A Field of View: 4.5-1.4Adeg A Eye Relief: 108--98mm / 4.2-3.9 inch A Length: 345mm / 13.6 inch A Weight: 470g / 16.6 ounce A Tube Dia.: 25.4mm (1") Monotube A Click Value: 1/4 MOA A Elevation Range: 60MOA A Windage Range: 60MOA A Parallax Setting: 10 yards to infinite A Reticle: VOW-10BDC A Illumination: None A Distance between objective lens part and middle turret: 57mm (2.2 inch) A Length of middle turret part: 33mm (1.3 inch) A Distance between middle turret part to power ring: 48mm (1.9 inch) A Objective lens parallax setting: 10, 15, 20, 30 50, 100, 200 and infinite yds A Shock tested to 600g 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, lens caps and cleaning cloth etc. Compatible Gun Type For Mid-Range Shooting: AR-15 / AR-10 / M&P15 (5.56 / .223), Tikka T1x / T3, Ruger 10/22 (.22LR), Airgun (Walther, HW, FX, etc.), CZ 457 / CZ Shadow 2, etc. For Long-Range Shooting: Tikka T1x / T3 / T3x (.22LR / .308), Remington 700 / 783 (.223), Sako, Anschutz, Howa, FX Impact M3 / MKII, AirForce Texan, CZ 457, Accuracy International, Cadex, Sako TRG, Steyr, etc. For Plain Game Hunting: Tikka T3x / Remington 700 (.308 / 6.5CM), Sako / Howa (.243 / .270 / .308 / 6.5CM), Marlin 336 (.30-30), Ruger American / Blaser R8 (.308), etc. For Big Game Hunting: Tikka T3 / T3x (.308 / 6.5CM), Remington 700 / 783 (.308 / .270), AR-10 (.308), Sako / Howa (.308), Marlin 336 (.30-30), Marlin 1895 (.45-70), Ruger American / Blaser R8 (.308), etc. For Dangerous Game Hunting: Ruger Guide Gun (.375 Ruger), CZ 550 (.416 Rigby), Remington 700 (.375 H&H), etc. For Plinking/Target Shooting: Airgun (FX, Walther, HW), Ruger 10/22, Barra / HW, Glock / CZ75, etc.