SIDEWINDER ED 10-50X60 TMX High magnification precision optical system. Extra-low Dispersion (ED) glass for optimum clarity. Interchangeable, locking and resettable turrets. Supplied with ¼ MOA Turrets. ( MOA & 110 MRAD Turrets available to purchase separately) Side focus control for parallax adjustment to infinity. (Patented removable side wheel, with different sizes available) 30mm mono-tube chassis for superior strength. Glass etched reticle with red illumination. Stepless IR rheostat offers total brightness control. Locking ocular and high torque zoom ring. Includes screw-in metal flip-up lens covers. Nitrogen purged water, shock and fog proof. Chassis:30mm Mono-tube Optical System:10-50x Objective:60mm Reticle:TMX Illumination:Red - Stepless Focus/Parallax:Side Focus - 9m / 10yds to Infinity Field of View: m @100m / ft @100yds3.9 - 0.8m / 11.7 - 2.4ft Eye relief:95mm / 3.7 Length:458mm / 18 Weight:980g / 34.6oz Waterproof, Shockproof, Nitrogen purged. All calibre rated. Material:Aluminium Exit Pupil:6 - 1.2mm / 0.25 - 0.05 Ocular Type:Locking Fast Focus Lens Coating:Fully Multi-Coated - 18 Layers Power Selector Style:Rubber Coated Posi-Grip Warranty:Hawke Worldwide Warranty Elevation Increment:¼ MOA Elevation Adjustment Range:45 MOA Windage Increment:¼ MOA Windage Adjustment Range:45 MOA Turret Caps:N/A Turret Type:Interchangeable ¼ MOA Interchangeable Turrets 4 Side Wheel 4 Screw-in Sunshade Pointer Metal Flip-up Covers Lens Cloth CR2032 Battery Pointer CR2032 Battery