Visionking Rifle Scope 3-9x44 Riflescope for Illuminated Monotube Hunting (Black) Magnification: 3x-9x Water and fogproof,Shockproof Objective Lens Diameter (mm): 44mm Illuminated reticle Ocular Lens Diameter (mm): 34mm Fast-focus eyepiece Field of View at 100yads: 40.3ft-13.8ft Excellent image quality Tube Diameter (inch):1 inch(25.4mm) Pricision Accurracy