Northtac makes extremely durable and reliable reflex and red dot sights. Their optics are made from durable materials, including lightweight hard coat anodized aluminum, are shockproof, and made with fully multi-coated lenses. They also offer multiple brightness settings, wide range windage and elevation adjustments, and a parallax-free sight picture with unlimited eye relief. Select models of reflex sights also feature multiple reticle options. Picatinny-rail compatible Some are even covered by lifetime warranties. Upgrade your rifle’s optics today with parallax-free models that let you keep an open sight picture for faster, more accurate follow up shots at close ranges.