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The Rotring 600 series is comprised mainly of four writing implements, a mechanical pencil, a clicky ballpoint, a capped rollerball and a capped fountain pen, I was looking for a pen to replace/compliment my Fisher Bullet, which has a tendency to hide at the deepest bottom of my pocket, a...
Looking at your picture, though, I can see that you are missing a spring. There should be a spring between the front cap and the body of the pen. It's a common position for a spring, just like any other traditional click-action ballpoint pen, it keeps the refill inside the pen wh...