If you have already purchased an Osprey fountain pen, you can now buy replacement assemblies or just a nib unit without having to invest in an entire assembly again. The assemblies cost $18, while the replacement nib units are priced at $14. The additional parts that come with the assembly are the generic outer section and the osprey converter, that you don't get with just buying the nib unit.

Note that the #5.5 ultraflex nib units come with custom ebonite feeds to keep up with ink demands of flex writing. These feeds do not accept International converters or cartridges and work best with the wide-mouthed osprey converters, designed specifically for use with flex nib units.

Send us an email to info@ospreypens.com if you have any questions.