Vortex Viper HD Features The Viper HD 5-25x50 delivers crisp high-definition imagery through premium HD optical elements that enhance resolution color fidelity and low-light performance. Its first focal plane VMR-4 (MRAD) reticle maintains accurate ranging and holdover data throughout the entire magnification range ensuring precision at any distance. A wide field of view and comfortable eye relief support situational awareness while maintaining a sharp uncluttered sight picture. Designed on a rugged 30mm tube this riflescope features an exposed elevation turret and capped windage turret for durability and precise external adjustments. The .1 MRAD turrets offer reliable tracking and tactile control while the RevStop system provides fast repeatable return-to-zero capability. With its smooth controls dependable mechanics and advanced optical layout the Viper HD offers robust long-range performance in a lightweight platform. Vortex Viper HD Specifications Manufacturer: Vortex Model: Viper HD Magnification: 5-25x Objective Lens Diameter: 50 mm Focal Plane: First Focal Plane Reticle: VMR-4 (MRAD) Eye Relief: 3.4 in Field of View: 23.6 - 4.7 @ 100 yds Turret Style: Exposed Elevation / Capped Windage Tube Size: 30 mm Adjustment Graduation: .1 MRAD Travel Per Rotation: 10 MRAD Max Elevation Adjustment: 20 MRAD Total Elevation Adjustment w/ RevStop Installed: 18.9 MRAD Max Windage Adjustment: 12.4 MRAD Parallax Setting: 20 yds - a^Z Length: 15.2 in Weight: 25.0 oz