This is an adapter for the haiku flashlight. It lets you use an AW17500(black label protected) in place of the normal cr123 or rcr123.
You still retain the o-ring and is machined from grade5/6al4v titanium. I can't guarantee the same finish as is on your haiku but sees to match mine well. I don't recommend nor would use any other brand of 17500 with this setup do to size difference, shape and quality.
Asking price is $50.00 shipped. US only please will not ship international at this time. Money order or paypal only please. Send me a PM if interested and feel free to ask any questions you have about the adapter.
P.S. still new to paypal or selling anything online so please bear with me. Thank you.
Here are some pics.