actually you might increase the value by bluing the bolt, if the rifles not anything too special, as one guy put it they're so many of the damn things that at this point by modifying them you can make them worth more then what you paid for the damn things.
"come on you sons of b***hs! do you want to live forever?" Sergeant Daniel Daly, USMC, Belleau Wood France June 6th 1918
"You can be as mad as a mad dog at the way things went. You could swear, curse the fates, but when it comes to the end, you have to let go" Benjamin Button