Not true. I recently purchased a nf 5.5x22 from a member here. It actually had the card he never filled out. I called nf and explained i purchased it used but had the card can i send it in or what is the deal with something like this. They told me it didnt matter who owned it and forget the card, nf has a life warranty. What a piece of mind. Also, i had a few questions about the zero stop after looking at the paper work that was included. I was asked if i was at the range i wasent. They told me to throw the paper work away if desired and call there tech support when i was ready and they would guide me thru every step if need be. + 1 for nf nice people to deal with, i feel i have 100% quality.