You mean the money clip is made of coated steel? If so, ask your friend where he got his.
Well, he works for the FBI and it is one of those things they can get a few of to give to close friends and family. I am sure you can find a steel money clip though. Most that look like brass arn't, they are brass coated steel. Try out a cheap brass looking money clip on a flint rod, once you wear a bit of the brass off the side it should spark it fine.