Gunwerks Revic PMR 428 4.5-28x56 Smart Riflescope, Color: Gray, Tube Diameter: 34 mm Sometimes it's better to just kick back and let technology do all the work. The Revic PMR 428 4.5-28x56 Smart Riflescope brings an array of impressive features to the table that will bring you precise shot alignment every time. What makes these Revic Riflescopes so impressive is the combination of sensors and an advanced ballistic algorithm that calculate your bullet trajectory in real time after you dial the turret. To precisely calculate each shot, the Revic PMR 428 Tactical Smart Riflescope is equipped with compass, incline, cant, pressure, and temperature sensors that take in all those factors to bring you the exact location where you should pop off your shot. Change the illumination color and intensity level to best match your surroundings. This Revic PMR 428 4.5-28x56 Advanced Smart Riflescope combines the processing power of a computer with the long-range utility of a riflescope. Get yours today to experience the future of hunting and become the ultimate apex predator. Specifications for Revic PMR 428 4.5-28x56 Smart Riflescope: Color: Gray Magnification: 4.67 - 28 x Objective Lens Diameter: 56 mm Tube Diameter: 34 mm Illumination Color: 36 Colors Eye Relief: 82 - 85 mm Exit pupil: 2 - 8.4 mm Adjustment Range: 50 MOA Field of View, Angle: 0.83 - 4.53 degrees Focus Range: 50 yds to infinity Diopter Adjustment Range: -2.5 - 2.5 dpt Light Transmission: 84.4 % Battery Type: AAA Lithium Operating Temperature: -4 - 122 Celsius Weather Resistance: Yes Water Resistance Level: IP67 Length: 14 in Weight: 47 oz