The Diamondback - loaded with features! First, the solid one-piece aircraft-grade aluminum alloy construction makes the Diamondback riflescope virtually indestructible and highly resistant to magnum recoil. Argon purging puts waterproof and fogproof performance on the agenda, and advanced fully multi-coated optics raise an eyebrow when crystal clear, tack-sharp images appear in the crosshairs. Look for all this and more in a riflescope you'd expect to cost quite a bit more-but doesn't. We can live with that. Specifications: Magnification: 3.5-10x Objective Lens Diameter: 50 mm Focal Plane: Second Focal Plane Reticle: Dead-Hold(R) BDC (MOA) Eye Relief: 3.3 " Field of View: 35.8' - 13.5' @ 100 yds Turret Style: Capped Tube Size: 1 inch Adjustment Graduation: 1/4 MOA Travel Per Rotation: 15 MOA Max Elevation Adjustment: 65 MOA Max Windage Adjustment: 65 MOA Parallax Setting: 100 yds. Length: 12.5" Weight: 15.5oz