Where to find Window Grid moldings.

I have just replace a 2'x5' glass window, and the plastic window grid molding that I removed form the old window can't be re-used. Now I have to find new molding. Home Base, Home Depot, you name it.. They don't have it, and they don't know where I can get it. A search on the web for this product turns up empty as well (unless I am looking the the Microsoft brand )

Anyone know where I can get this product? I need a dark bronze color.

BTW: I was able to locate new window (multipaned) with the same molding in wite, on the in iterior pane, so I know it's still being made... somewhere...

Armand