The high quality SN-3 3.8-22x from U.S. Optics is loaded with features to suit all your needs for tactical situations. The fully multi-coated Schott glass lenses allow full transmission of 94.6% of available light, which when paired with the red illuminated MIL GAP Reticle, makes them ideal for use from dawn until dusk. The push button illuminated reticle features 11 intensity settings for a custom lighted reticle. A large EREK knob (Erector Repositioning Elevation) that is low profile and has a large diameter makes elevation adjustments quick and easy, even when wearing gloves in cold weather and provides 9 MIL/revolution. The windage knob is a U.S. #3 M40 1/10 MIL knob which is finger adjustable and allows for 10.5 MIL/revolution. Each U.S. Optics scope is hand-built by one person to ensure that the utmost care is taken in producing a quality scope.