While we do offer a nib exchange service and do sell most fountain pen nibs and rollerball sections, unfortunately we do not sell other spare parts.
We do not sell caps or barrels for the following reasons:
The replacement of the required cap or barrel may not be the only repair needed
For pens that are not black, we may experience colour matching issues between the cap and the barrel
All repair operations do include an overhaul, which may be a pen cleaning, a mechanism check, or replacement of the cartridge and convertor for fountain pens.