Not holding up for the factory, but it's a sign of the times, I'm afraid. If you frequent eBay, etc., you will see several gun parts listed "New" popping up for sale. Can't say all of them are from the factory, but one school of thought is some in the community seem to find getting free parts and turning a profit is more important than honesty. If this is really happening, I can't blame the factory.
Now the price you posted does seem a bit high for a screw.