With globalization things are getting really weird in the retail space. For example, snap-on (a super premium tool maker) used to make wrenches for Lowes. They were nearly identical: http://www.snapon-bluepoint.com.sg/
Just a few days ago, AVE did a few videos showing evidence that there may be a single supplier for some new airguns that are on the market. Thing is, these air guns range in price from less than $100 (harbor freight) to well over $500 (premium brand). He tested a Husky brand that was much more expensive than the HF one and found it to likely be worse than the cheap one. He had a good theory in the video that no one can beat manufacturing overseas now days for quality or price. So everyone just outsources it and is hoping no one notices.