Originally Posted by TxGun
You're absolutely sure that what you saw wasn't the brown preservative grease the most new guns come coated with? It can look like rust.
That's what the owner of the store said he thought it was grease. He took the shotgun in the back to clean it out. When he came back he said it was definitely surface rust. I have an 835 and have never had any rust issues with it but it is probably 15+ years old. I didn't see it on any of the 590's that came through the store. This is the first 590a1 that I've seen there and I was set to buy it until I saw the rust.