Choose nibs of your choice to outfit the pen

A variety of nib units are offered at a discounted price when you bundle extra nibs with the purchase of your pen.  Click on the hyperlinked choices below to learn more about the choice of nibs.

• Choose from Osprey Regular Size 6 nib units in  Steel, Gold  or 2Tone. All regular nibs used for everyday writing, come with a plastic feed and accept international standard converters or pre-filled ink cartridges, giving you the flexibility to use either bottled ink or pre-filled ink cartridge. The pen is fitted with an Osprey custom converter by default and is packaged in a premium pen box.

• #6 Steel  Economical Special Grinds such as the Architect Broad, Architect BB, Zoom BB, Broad Left-Oblique or Broad Right-Oblique, Broad-Stub or Double Broad Stub. Just like the #6 steel nibs, the special grind nibs also accept international standard converters or pre-filled ink cartridges, giving you the flexibility to use either bottled ink or pre-filled ink cartridge or use with Osprey custom converter. 

•  #5.5 Ultra-flex, #6 Ultra-flex, Zebra G or Titanium Ultra-flex assemblies:  Ultra-flex nibs are for ardent calligraphy users! You can purchase these as complete assembly for a seamless plug & play, or buy just nib units to swap. A nib unit is made up of a nib and feed fitted into a threadable housing. The assembly consists of  nib unit +  Outer grip section + Osprey converter. All ultraflex nib units come with custom ebonite feeds. It is best to use fountain-pen friendly inks  to avoid clogging the feed.
• #5.5 ultraflex nibs, Zebra G Flex and Titanium Ultra-flex are non-cartridge type, meaning they do not take any prefilled ink cartridges or international converters. They are made to work with custom Osprey converters. Size 6 Ultraflex nibs on the other hand take both a cartridge and converter, which means you can use prefilled ink cartridges or use bottled ink. 

If you choose a Zebra G assembly be sure to add a nib-block kit , if you don't already have one. You can download a maintenance guide that helps in easy disassembly and assembly of the flex nib & feed, when the pen feeds get clogged over time with use. The nib block does not accommodate size 6 nibs, you will instead need to use the rubber grip ( can be purchased separately) provided in the kit for disassembly and assembly.