I would really like to see a Volley gun pistol in GW2
something like this
http://www.horstheld.com/6.JPG
or this
http://www.dave-cushman.net/shot/jpg/duckfoot3.jpg
Either of those or a Pepperbox pistol (early form of revolver with the cylinder forming the entire length of the barrels) http://www.rockislandauction.com/photos/1018/p_standard/XJK3-K-F2-H.jpg
would be epic.
