Nikon M-308 4-16X42 Riflescope BDC 800 Reticle, Matte 16463 Fully multicoated lenses enhance light transmission for bright, clear images with well-balanced color Designed for use with Nikons Spot On Ballistic Match Technology. Waterproof/Fogproof/Shockproof. Quick Focus Eyepiece. BDC 800 Reticle.