Pen Recommendation - Something that takes the Mont Blanc Fineliner Refill

[AR-Trvlr]

Any recommendations on a pen that takes the Mont Blanc Fineliner refill? I've fallen in love with how it writes, and want a quality pen to go with it.

I'm fairly open as to style, but one non-negotiable requirement is that the cap clicks (not threaded) and can be posted.

The Prometheus Alpha is a contender - anything else I should look at?