BARSKA 6-24x44 IR SWAT Extreme Tactical 30mm Riflescope (Black Matte) 6x-24x variable magnification with large 44mm objective lens Fully multi coated optics with illuminated Mil-Dot glass-etched reticles Allows precision adjustment with a side parallax adjustments in a turret-mounted focus knob 30mm monotube construction for maximum light gathering with fast focus eyebell Bonus accessories includes flip-up covers for lens protection and a set of 5/8" high see-through rings