The Athlon NEOS HMR 4-12x40mm rifle scope is specifically engineered for .22 rimfire shooting with a dedicated BDC 22 Rimfire MOA reticle for precise bullet drop compensation.Athlon NEOS HMR 4-12x Variable Power Rifle Scope40mm objective lens with 4-12x magnification rangeBDC 22 Rimfire MOA reticle designed for .22 caliber ballistics1-inch tube diameter with black matte finishCompact 12.1-inch length and lightweight 18.1 oz designField of view: 27.5-7.86 feet at 100 yardsIdeal for small game hunting target shooting and plinking with .22 rimfire rifles offering reliable performance in a compact lightweight package perfect for rimfire applications.