I don't have one and haven't really seen one, except in photos, but if the SP01 hass the standard polycoat finish almost any Matte Black auto body touch up paint will be a good match. Dupli-Color matte black has always been a perfect match for my polycoated CZs.
I generally get one of the larger spray can -- which is more expensive -- but, because it's a thinner paint than the paint in the little bottles with built-in applicators, you can apply it with a model paint brush for better, more precise results.