The Monarch 4-16x42 with its ultra ClearCoat optical system produces a sharp and incredibly flat sight picture. You can view magnification reference numbers in this Nikon side focus riflescope for easy zoom-control. The strategic position of the easy-to-reach dial in this Nikon riflescope lets you switch to focus from shooting mode instantly. With Four-inch of constant, non-critical eye relief and 4-time zoom range, the Monarch 4-16x42 allows you to view your subject comfortably along with all details. The one-piece main body tubes in this Nikon side focus riflescope are light in weight yet strong and durable. The superior quality huge ocular lens of this Nikon riflescope delivers bright and high resolution pictures.