Leupold Rifleman 4-12x40mm Riflescope, Matte RBR Full waterproof and fogproof integrity - each is ready for a lifetime in the field, in all conditions The Multi-coat 4 lens system delivers extreme clarity from edge to edge of the visual field, outstanding contrast, and a bright sight picture even in extreme low-light conditions A versatile 3:1 zoom ratio erector system that is ideal for virtually any situation Leupold's classic/standard fast focus eyepiece with a low profile lock ring makes reticle focus easy to achieve and maintain Micro-friction dials are marked in 1/2-MOA increments for easy windage and elevation adjustments