With long eye relief, a fast-focus eyepiece, fully multi-coated lenses and resettable MOA turrets, there’s no compromising on the Crossfire II. Clear, tough and bright, this riflescope hands other value-priced riflescopes their hat. The hard anodized single-piece aircraft-grade aluminum tube is nitrogen purged and o-ring sealed for waterproof/fogproof performance.SpecificationsMagnification 3 9Objective Lens Diameter 50 mmEye Relief 3.8 inchesField of View 3212.9 feet/100 yardsTube Size 1 inchTurret Style CappedAdjustment Graduation 1/4 MOATravel per Rotation 15 MOAMax Elevation Adjustment 60 MOAMax Windage Adjustment 60 MOAParallax Setting 100 yardsLength 12.80 inchesWeight 18.4 ouncesOptical FeaturesFully Multi-Coated Increases light transmission with multiple anti-reflective coatings on all air-to-glass surfaces.Second Focal Plane Reticle Scale of reticle maintains the same ideally-sized appearance. Listed reticle subtensions used for estimating range, holdover and wind drift correction are accurate at the highest magnification.Construction FeaturesTube Size 1-inch diameter.Single-Piece Tube Maximizes alignment for improved accuracy and optimum visual performance, as well as ensures strength and waterproofness.Aircraft-Grade Aluminum Constructed from a solid block of aircraft-grade aluminum for strength and rigidity.Waterproof O-ring seals prevent moisture, dust and debris from penetrating the riflescope for reliable performance in all environments.Fogproof Nitrogen gas purging prevents internal fogging over a wide range of temperatures.Shockproof Rugged construction withstands recoil and impact.Hard Anodized Finish Highly durable low-glare matte finish helps camouflage the shooter’s position.Capped Reset Turrets Allow re-indexing of the turret to zero after sighting in the riflescope. Caps provide external protection for turret.Convenience FeaturesFast Focus Eyepiece Allows quick and easy reticle focusing.