Leupold FX-II 4x33mm Riflescope, Wide Duplex Reticle, Black aluminum Imported Leupold's classic/standard fast focus eyepiece with a low profile lock ring makes reticle focus easy to achieve and maintain 1/4-MOA field-click adjustments for windage and elevation Durable and compact, the one-inch maintube is lightweight and fits more legacy rings Made with Leupold's Proprietary nitrogen sealing process, which has become the industry standard Complete waterproof and fogproof integrity - each is ready for a lifetime in the field, in all conditions