Need Cambridge Rollerball Nib

[Nickfff]

Hi,

I have a Cambridge rollerball pen and it has a broken nib. It is black with a silver/chrome plated nib. Does anyone have an extra they would sell?

This is the pen for reference:
http://www.arizonasilhouette.com/cart/graphics/00000001/BHW527_274x274.jpg

Thanks,
Nick