On the customer service question, you need to understand a couple things.
First & foremost is that "Uberti" in general is a manufacturer in Italy. They do not sell their guns direct to consumers in America, they sell to importers.
Uberti, as such, has no "customer service".
The original Uberti USA was operated in this country some years back by Aldo Uberti's sister, Maria. That company was an importer & bought product from Uberti in Italy, just like the other importers were doing.
Due to issues not worth going into here, Maria shut down the gun part of her US business & it evolved into VTI, a parts company.
Some years later, a different Uberti USA opened up, as part of the Beretta/Stoeger/Benelli/Uberti conglomerate, and the current company is selling Italian-made products in the US that it imports, while several other importers like Cimarron still continue to buy from Uberti in Italy & import the products for US sale.
What all this means is that you can't buy a Uberti gun from just any source & "return" it to Uberti for service if a problem develops.
You return it to the importer you bought it from if you're the first owner, or you contact the importer stamped on it for service info if you buy it used.
If it's a Beretta Uberti, it'd go to Beretta. If it's a Cimarron Uberti, you talk to Cimarron. And so on.
"Uberti" would only be involved in repair or warrantee issues if the gun was imported & sold by the current Uberti USA outfit.
You buy from somebody on Gunbroker, I'd expect no warrantee & nobody to return it to directly for service.
The importer who originally brought it into the US MAY do repairs for you, but they'd most likely require you to pay for them, since you're not buying direct.
There's been some confusion about this in the past, when people tried to send Uberti products not sold by either of the two non-related Uberti USA companies to them for work.
It's not like you buying a new Ford from one dealer & being able to use the warrantee at any other Ford dealership across the country.
Denis