Athlon Optics Ares BTR GEN3J HD 2.5-15x50 30 mm Tube Rifle Scope First Focal Plane APRS13 MIL Reticle Black. 5-15x50 offers a high-definition viewing experience and a long list of top-shelf features without breaking the bank. With a magnification range that hits the sweet spot this scope is a workhorse that is ideal for an array of applications. Specifications for Athlon Optics Ares BTR GEN3J HD 2.5-15x50 30 mm Tube Rifle Scope First Focal Plane: Manufacturer: Athlon Optics Objective Lens Diameter: 50 mm Magnification: 2.5 - 15 x Reticle: APRS13 MIL Tube Diameter: 30 mm Reticle Focal Plane: First Focal Plane (FFP) Field of View Linear: 6.8 - 41.8 ft at 100 yds Eye Relief: 3.9 in Color: Black Adjustment Click Value: 0.1 Mil Rad Features of Athlon Optics Ares BTR GEN3J HD 2.5-15x50 30 mm Tube Rifle Scope First Focal Plane Argon Purged High Precision Erector System Aircraft Grade Aluminum Tube Side Parallax Adjustment Illuminated Glass Reticles Exposed Turrets Waterproof HD Glass Advanced fully multi-coated XPL Coating Precision Zero Stop System Package Contents: Athlon Optics Ares BTR GEN3J HD 2.5-15x50 30 mm Tube Rifle Scope First Focal Plane Athlon Optics 212015J: Ares BTR GEN3J HD 2.5-15x50 30 mm Tube Rifle Scope First Focal Plane APRS13 MIL Reticle Black