Exposed tactical turrets built for dialing elevation and windage allow quick and precise bullet drop and wind drift compensation at extended ranges. When we say precise?we mean it. These turrets track better than any Bloodhound and reliably return to zero every time. A zero-reset feature lets you re-index the zero reference marks on both turrets after sight in, while fiber optic rotation indicators integrated into the turrets provide a visual cue of your turret?s position. XD? Lens Elements - Extra-low dispersion (XD) glass increases resolution and color fidelity, resulting in crisp, sharp images. XR? Fully Multi-Coated - Proprietary coatings increase light transmission with multiple anti-reflective coatings on all air-to-glass surfaces. Second Focal Plane Reticle - Scale of reticle maintains the same ideally-sized appearance. Listed reticle subtensions used for estimating range, holdover and wind drift correction are accurate at the highest magnification. Single-Piece Tube Precision-Glide Erector System-Uses premium components in the zoom lens mechanism to ensure smooth magnification changes under the harshest conditions. Exposed Tactical Turrets - The Diamondback(R) Tactical scopes feature tactical windage and elevation turrets with Zero Reset making adjustments back to zero easy and quick. Fast Focus Eyepiece - Allows quick and easy reticle focusing. Fiber Optic Radius Bar - The patented fiber optic Radius Bar visually assists tracking turret rotations. Magnification Rib - The raised rib on the magnification ring facilitates fast magnification changes in the heat of action.