Nikon Monarch Gold 30mm 2.5-10x50 Riflescope (SF Matte, BDC Reticle) High-quality riflescope with 2.5x to 10x magnification and 50mm objective diameter Fully multicoated, super-high-performance lenses deliver flare-free, high-contrast images Bullet drop compensating (BDC) reticle provides quick, simple aiming points for various distances Rugged 1-piece 30mm main body tube is 100 percent waterproof, shockproof, and fogproof Measures 13 inches long and weighs 21.2 ounces; Nikon lifetime warranty