Madison2 Outer Section (for all other nib units other than Size 6 flex nib unit)
Special Note: The Madison size 6 flex nib comes friction-fit in the blue outer section. If you have purchased any other Osprey nib unit, other than the Size 6 Flex, and wish to use those nib units on a Madison, you will need the Madison2 Outer section (a second section), that has threads inside and allows for swapping of nib units.
For replacement nib units, check out Madison replacement Nib Unit item listing.
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