VISM Center Beam 3-9x42 Sniper Reticle Red Laser Rifle Scope 1.Magnification: 3x to 9x 2.Objective lens: 42mm 3.Waterproof: Yes 4.Fogproof: Yes 5.Reticle:Red illuminated Mil-Dot 6.Exit pupil: 13.3 to 4.4mm 7.Field of view: 36.6-13.6 feet @ 100 yards 8.Eye relief: 3.85 inch 9.Adjustment knob: Adjustable rheostat, exterior windage and elevation, adjustable side parallax Features: * Innovative Center Beam Technology: First of its Kind Internal Laser Sighting System * Pinpoint Accurate Red Laser is Fully Adjustable and Illuminates with a simple Twist of a Knob * Waterproof, Shockproof, Fogproof capable of withstanding the toughest conditions * Audible and Tactile MOA Elevation and Windage Adjustments * Open Target Style Turret Knobs are Resettable for easy Zero Recognition * Solid One Piece Main Tube Construction * Hard Anodized Aircraft Grade Aluminum Body * Fully Multi Coated Optics Provide an Ultra Sharp View * Rated to Withstand Air Gun Dual Recoil * Nitrogen Purged and O-Ring Sealed