I'm thinking of selling my old Bear Grayling Magnesium A handle takedown. But I just don't know what to ask. Can someone help. Oh, it is in almost perfect shape.

Put it on the auction site. Or, look to see what others have gone for on that site. Unless it is one of those '76 ers my guess is 250.00. But you didn't say the specs. 76 ers are way less.