Umarex told m e to remove the stock to ship it, and that they only accept guns for warranty work as such. They say that if you send them a rifle in a stock it might not come back with the stock. I haven't done anything other than that, haven't tried to disassemble it at all.I don't see how they could try to say this wasn't a manufacturers defect, but if they do, they charge smithing hourly plus parts... and I bet for that I could put a vortex kit in or something for the same price. I think they should at least pay shipping to check it out, the rifle is practically brand new.