Bering Optics, based in Irving, TX, specializes in developing and manufacturing night vision optics, red dot sights and variety of accessories. The company product lineup features Thermal, Digital, Day-night, Gen 1, Gen 2+ and Gen 3 night vision. Bering Optics was named as of one of the best selling brands in the past three years, according to the surveys conducted by Gun Trade World magazine. (less)