Thanks for pointing that out 56S. I've read the spring makes a buzzing noise. It's easy to get confused, there has to be a lot of mechanical noise from a spring piston rifle.
So after you installed the .22 barrel were you pleased with the results?
Refurb could be a torn box, a return, kicked to hard, to hard to cock etc. If you're worried check and if they haven't shipped yet, cancel or send it back. You can get a new one at Wally world for $99.The week after I paid dpci $64 for my Elite refurb they reduced them to $49. Dpci has $100 minimum order. I also got another gun I' been wanting.