The bolt has been swapped out for a standard one by someone who correctly thought it would look better in their regular blued version. I have seen lots of these and own a few and they ALL have had the stainless bolt with the Ruger logo stamped on the back end. You have a great little shooter none-the-less, so put some rounds through it!...but don't hold your breath on keeping that as any type of collector.....not that the 100% correct ones are any such thing in themselves. Enjoy it.