The Bushnell Banner 6 - 18 x 50 Riflescope features a 1-piece tube design and 1/4 M.O.A. fingertip resettable windage and elevation adjustments. The riflescope's 100% waterproof and fog-proof construction helps you maintain a clear view in wet weather, and multicoated optics provide maximum light transmission and optimum brightness. Dry nitrogen filled. Fast-focus eyepiece.