Athlon Heras SPR 4-20x50 Features The Athlon Heras SPR 4-20x50 utilizes advanced fully multi-coated lenses to maximize brightness contrast and true color transmission throughout the magnification range. Its second focal plane configuration maintains a consistent reticle size while supporting precise shot placement at extended distances. Argon purging combined with waterproof fog proof and shockproof construction ensures dependable performance in demanding hunting environments. As a MIL hunting rifle scope this model features the AAGR2 SFP MIL etched glass reticle with precise 0.1 MIL click adjustments for accurate corrections. An exposed elevation turret paired with a locking windage turret allows confident dialing while preventing inadvertent adjustments. The precision zero stop system ensures a sharp repeatable return to zero and side focus parallax adjustment from 10 yards to infinity enhances clarity across both close and long-range applications. Athlon Heras SPR 4-20x50 Specifications Manufacturer: Athlon Model: Heras SPR Magnification: 4-20x Objective Lens Diameter: 50 mm Tube Diameter: 1 in Reticle: AAGR2 SFP MIL Focal Plane: Second Click Value: 0.1 MIL Adjustment Per Rotation: 10 MIL Total Elevation Adjustment: 21 MIL Total Windage Adjustment: 21 MIL Field of View: 27.9-5.6 ft @ 100 yds Eye Relief: 3.6 Parallax Adjustment: Side Focus 10 yds - Infinity Turrets: Exposed Elevation Locking Windage Optic Coating: Advanced Fully Multi-Coated Material: Aircraft Grade Aluminum Purging Material: Argon Proofs: Waterproof Fog Proof Shockproof Length: 13.3 in Weight: 25 oz