How can I fix a my aviators sungles?

One of the arms broke off of my aviators and I really like them. The metal broke apart a little bit above the screw. I tried to krazy glue it back together, but I only sealed it shut, so if I do get it fixed myself, the arm won't be able to come in. Is there any way that I can get the arm back on and get the krazy glue off?