The NX6 are made by Nightforce’s long-time partner in Japan to Nightforce’s stringent specs. A portion of our optics offerings are engraved "Developed, Assembled, Verified in USA," and others are engraved as "Made in Japan." The different "Made in" designations are due to the countries of origin of the optics' primary core components. We have worked with a Japanese firm since our earliest days, as they have proven time and again to be industry leaders in optical design and manufacturing. It has always been Nightforce's goal to build the best optics in the world, and we know that our Japanese affiliates help us achieve that goal. Before they leave the factory, Nightforce riflescopes are subjected to conditions far beyond anything you will ever encounter in the field. During our impact testing, our optics experience 1200 Gs of force on multiple axes. After each severe impact, the riflescope is hand-checked for tracking, accuracy, and overall integrity.