this man http://www.magic9designltd.com/home made the adapters for my fwb c10
this adapter is to fill a soda stream bottle from a big co2 cylinder
http://i1067.photobucket.com/albums/...psf2ea78d4.jpg
this one needs no explanation
http://i1067.photobucket.com/albums/...psef3bdf4f.jpg
the adapter on the right has a pin (not in photo) to allow liquid co2 from the soda stream bottle to the pistol cylinder
http://i1067.photobucket.com/albums/...ps5dbe2959.jpg
the big co2 cylinder to soda stream needs no pin as the pressure of the big warm cylinder is grater than the pistols cold cylinder (the cylinder been filled has to colder than the one doing the refilling)
the soda stream adapter in the photos are for the old soda stream bottles but nick said he made one up with the new soda stream thread