Element Optics Helix Gen2 6-24x50 FFP, APR-1C MRAD Reticle, 30mm Tube 6-24x magnification 30mm aircraft-grade aluminum tube Objective: 50mm Eye Relief: 3.7-4 Inches Exit Pupil: 8.3-2.1mm Click Value: 1/10 MRAD Elevation Adjustment Range: 18.9 MRAD Windage Adjustment Range: 11.6 MRAD 8 MRAD per turret revolution Field of View @ 100yds: 20.1-5.1ft Length: 14" Weight: 29.2oz Side parallax: 10yds to infinity Adjustable Diopter Advanced fully multi-coated lenses Waterproof, shockproof, fogproof Nitrogen purged Zero-stop mechanism Platinum Lifetime warranty Includes flip-up lens caps, lens cloth, bikini lens cover, Allen wrenches, aperture ring, sunshade, and decal