I've never seen or heard of this one so I looked it up. According to Suprica's 3rd volume, there were 300 of those 4" full lug barrel guns built in 2003 with the titanium cyclinders. The Performance Center guns have flat sided barrels. So, if the book it correct, you have 1 of 300 made. Should be a collectable, but I don't know.

Take care
Chris