The Museum of the Fur Trade published vol 1 of a series they are doing. Volume 1 is on guns (volume 2 will be on textiles). It shows French as well as English trade guns. I'm at work right now, so I don't have my copy handy. I might be able to scan and email you some pictures when I get a chance.
I was disappointed in the book. A lot of the pictures were quite small without a great deal of detail. It was a bit over priced for the quality (printed in China).