Waterproof; fogproof and shockproof. Multi-coated optics for clear images. 1 inch tube construction. Adjustable objective lens to adjust for parallax. 1/8 inch M.O.A. click adjustments. Designed for long-range and precision shooting. Ideal for varmint hunting and target shooting. Description: 6-24 x 50 AO. Magnification: 6-24x. Objective Lense: 50. Reticle: Mil Dot. Field of View: (Ft @ 100 yds/m @ 100mm) 15/5 @ 6x -4.2/1.4 @ 24x. Exit Pupil: (mm) 8.3-2.0. Eye Relief: (Inch) 3.5. Click Value: (Inch) 1/8. Finish: Black Matte. Weight: (Oz) 21.98. Length: (In) 16.42.