The Burris BTS Thermal Riflescope is the perfect addition to any nighttime shooting set up, be it tactical or hunting. It features a 4 power zoom and 5 different color pallets to help track your target's heat signature in a wide range of weather conditions. Features of the Burris BTS Thermal Riflescope5 color pallets10 reticle optionsStadiametric rangefinderAdjustable for brightness and contrast Burris BTS 35 2.3-9.2x35mm Thermal Riflescope 300601