I remember reading about it at one time, seems it was a user regulated sxs double just for deer hunting. I think I remember it being called the tracker but google only brings up pages of H+R when I search that. Was just wanting to research it a little. I keep pondering having express sights put on a sxs for purely romantic purposes. ( I cant now nor probably ever afford a double rifle or a trip to where I might need one). Any way was hoping some one remembers this thing, would love to know what they might cost now, and if they're can even be found. Thanks fella's