Nikon INLINE XR BDC 300 Riflescope, Matte Black, 3-9x40 Featuring Nikon's Patented BDC 300 Reticle with a unique, open circle design that makes long-range shots easier A consistent 5-Inch of eye relief keeps your brow safe  even against the heaviest recoil Made with Nikon's fully multicoated optics for maximum brightness and light transmission Adjustments are made easy with Spring-Loaded Instant Zero-Reset Turrets Optimized for use with Nikon's Spot On Ballistic Match Technology