For chest holsters, check out the "guide's choice holster" made by Diamond D's leather out of Chugiak, AK. Best chest holster I have come across by far and they are developing a very loyal following. If they don't have one for your model, they'll make one, same price.

It is easy to set them up so they ride right under the top of your waders and well out of the way of fishing activities. You won't know it's there until you need it.





http://www.diamonddcustomleather.com/Chest_Holsters.php

I have over 300 field days on mine and it is still going strong.