Built on Prism, it"s so tactical, length only 5.5".Reticle with position for 400 and 600yards, with lines in-between.Side wheel Red Green and Blue Tri illumination .Adventure class lenses are multicoated with advantage solution to provide maximum light transmissionIntegral carry handle mount and flat top adaptorEtched Glass Reticle for Both Quick CQB Field Action and Precision Aiming Adventure class lenses are multicoated with advantage solution to provide maximum light transmissionCompletely sealed and nitrogen filled 100% shockproof waterproof and fogproofWeaver / Picatinny slot on top for adding accessories, like laser or flashlight and so on. Magnification: 4X Tube Diameter: OTHER Objective Diameter: 32mm Field of View @ 100 yards: 42" Eye Relief: 3.1" Exit Pupil: 16mm Click Value @100 yards: 1/4" Length: 5.5" Weight: 15.9 oz Parallax Setting: 100 Yds Batteries: CR2032 3V