Specifications for Trijicon TARS 3-15x50 Variable Power Riflescope: Magnification: Range 3 - 15 x Objective Lens Diameter: 50 mm Tube Diameter: 34 mm Adjustment Range: 150 MOA Weight: 47 oz Field of View: Range 7.5 - 37.5 ft at 100 yds Eye Relief: 3.3 in Length: 13.9 in Color: Black Exit Pupil: Range 16.76 - 330.2 mm Illumination Type: LED Condition: New Illumination Color: Red Features of Trijicon TARS 3-15x50mm Rifle Scope: Illuminated Reticle First Focal Plane Reticle Hydrophobic Coating Waterproof Locking Adjusters & Return to Zero Constant Eye Relief Fully Multi-Layer Coated Lenses Broadband anti-reflective coating for superior transmission First Focal Plane Reticle With zero forward emission Side-Focus Parallax Compensation From 40m to infinity Scope Body is Crafted from Aircraft-Grade Hard-Anodized Aluminum MIL-SPEC rugged construction protects against the toughest elements