Vortex 6-24x50mm Diamondback Tactical Rifle Scopes are designed with First Focal Plane function, making it easier to use reticle subtensions all the way to the highest magnification level. These Rifle Scopes from Vortex Optics have anti-reflective coatings on all exposed glass surfaces to improve visibility even without illumination at dusk and at dawn. The Vortex 6-24x50mm Diamondback Tactical FFP Rifle Scope comes equipped with Zero Reset enabled tactical windage and elevation turrets that adjust precisely for more accuracy. Count on the shockproof, fogproof Vortex 6-24x50mm Diamondback FFP Rifle Scope for your next hunt. Manufacturer: Vortex Objective Lens Diameter: 50 mm Magnification: 6 - 24 x Tube Diameter: 30 mm Reticle Focal Plane: First Focal Plane (FFP) Exit Pupil: 2.08 - 8.33 mm Illumination Color: None Finish: Hard Anodized Field of View, Linear: 4.5 - 18 ft at 100 yds Eye Relief: 3.9 in Weight: 24.6 oz Length: 14.5 in Parallax: 10 yds to infinity Illumination Type: Non-Illuminated Width: 4 in Fabric/Material: Aircraft Grade Aluminum Height: 2.44 in Focus Range: 10 yds to infinity Lens Material: Glass Optical Coating: Fully Multi-Coated Weather Resistance: Yes Water Resistance Level: Waterproof Shockproof: Yes Fogproof: Yes Battery Quantity: 1 Package Type: Box Magnification Type: Variable Attachment/Mount Type: Ring