This pen is called the MAGNUM because it's a LARGER VERSION of the Nanga. It was a special order and the client gave me the LENGTH he wanted, then said he also wanted the rest of the pen tp be proportionally larger. So EVERYTHING but the nib is larger (including the capping threads).
The pen includes the same unique forward mounted threads as the original. It also includes another feature not on the standard Nanga-- The client wanted to use it as an eyedropper, so I added an o-ring to seal in the ink.