No, Americans typically design it and often times build the factory for their bodies to man the automated equipment that we designed here so they can produce our products for us. The rest, they reverse-engineer or just outright steal in some cases off of our designs. There's very little original thought and/or design that comes from a communist society. I wish I could share it here (I can't), but I know of one product sold by a Chinese mainland company that they still sell with the drawing number machined into the side of it from the US company that originally sent them the drawing. They pay to machine a feature that they no longer need because they're just copying what they've been given. It's just hilarious.I have a Diamondback Tactical 6-24x50 - haven't shot with it yet, still waiting on Wyoming as a whole to thaw out. But I'm VERY happy with it just going off the glass and overall construction of it. My only gripe is that all but their Razor line are made in China. And that's mainly for political reasons - otherwise, as much as I love buying American, we're not the only country that makes high-quality stuff.
At least I could peel off that "Made in China" sticker. 😁
EDIT: A former Mechanical Engineer and Chinese-born coworker (recently retired) used to talk about this. He told the story of giving an assignment to a group of Chinese students to draw a cat. He said you'd get the same perfect cat from every student. You give the same assignment to Americans and you'd get something unique from every student.