They can still be cheaper grade. If the manufacturers make multiple grade distributors can sell them. I don’t know if they’re getting cheaper grade, but I also don’t want to find out, because the only way to find out sucks.
Usually the difference is in the stock and finishes, not in the metal parts. As an example Marlin’s classic 30-30 lever action is offered just before hunting season at low prices in a variety of chain stores. But they have stained birch stocks instead of walnut. But it’s the same Marlin regardless of the store or chain. Same distributors the sole owner shops use.
A lot of folks see them as working tools not safe queens.