The Viper Rifle scope from Vortex features a one piece aircraft-grade aluminum tube that maximizes its strength and weather resistance. The premium multi-coated glass with a hard anodized finish reduces glare and increases durability. The Vortex ArmorTek coating protects lenses from scratches, oil and dirt. Vortex engineering boasts maximum repeatability, ease of adjustment, and smooth magnification changes with the Precision-Force Spring System and Precision-Glide Erector System.

Dead-Hold BDC MOA Reticle Manual (PDF) 
Finish: Matte Black
Waterproof: Yes
Weight: 14.2 Ounce
Tube Diameter: 1"
Power Variability: Variable
Minimum Power: 3
Maximum Power: 9
Adjustment Click Value: 1/4 MOA
Adjustment Type: Click
Exposed Turrets: No
Finger Adjustable Turrets: Yes
Turrets Resettable to Zero: Yes
Zero Stop: No
Turret Height: Low
Fast Focus Eye Piece: Yes
Lens Coating: 
Multi Coated
Warranty: Vortex VIP Unconditional Warranty
Rings Included: No
Sun Shade Included: No
Lens Covers Included: Yes
Reticle: Dead-Hold BDC
Reticle Construction: Glass Etched
Illuminated Reticle: No
Holdover Reticle: Yes
Reticle Focal Plane Location: 2nd
Parallax Adjustment: Fixed
Fog Proof: Yes
Shock Proof: Yes
Overall Length (A): 12.4 Inches
Eyepiece Bell to Objective Bell Length (B): 5.4 Inches
Objective Bell to Turret Length (C): 1.9 Inches
Eyepiece Bell to Turret Length (D): 2.1 Inches
Eyepiece Length (E): 3.4 Inches
Objective Bell Length (F): 3.6 Inches
Objective Diameter (G): 1.87 Inches
Eyepiece Diameter (H): 1.56 Inches
Objective Lens Diameter: 40 Millimeter
Eye Relief: 3.5 - 3.7 Inches
Field of View @ 100 Yards Minimum Power: 35.5 Feet
Field of View @ 100 Yards Maximum Power: 12.2 Feet
Maximum Windage Adjustment: 92 MOA
Maximum Elevation Adjustment: 92 MOA