Not sure about the Fenix pouch but I picked one of these recently that get's the job done.
Here is one for 4xCR123s, kinda expensive though:
http://www.originalsoegear.com/battery.html
Here is one for 4xCR123s, kinda expensive though:
http://www.originalsoegear.com/battery.html
The smaller ones were made by AW. I wanted to buy another one last year in April. They were not available any more (lighthound used to have them). I now have the one from original SOE Gear. It is of very high quality, but more expensive and much more bulky than the older one from AW. I carry mine in a jacket pocket.
Could you post a picture of it?
Here is AW's thread with a couple of pics of the CR123 holster:
http://www.cpfmarketplace.com/mp/showthread.php?91932-CR123-Battery-Holster