Maximize the performance of your firearm to its full potential with the NcSTAR Tactical Series. The pact and light weight design provides for easy carry and use no matter what situations may arise. Multiple mounting configurations give you choices for quick installation. The NcSTAR Tactical Series is always ready for the action. Features: Classic design in small package Air gun patible Fixed Power Magnification Multi Coated Lenses Includes lens cover Specifications: Magnification: 4X Tube Dia.: .75 Objective Dia. (mm): 20.00 FOV (Feet @ 100 yds): 26.2 Eye Relief (in): 2.5 Exit Pupil(mm): 5 Reticle: Plex N.W(oz.): 3.35 Length (in): 7.88 Click Value: N/A Exterior Finish: Matte Black Lens Coating: Blue Mount Included: Dovetail Rings