I picked up this little saw today for firewood cutting because I will be using my rear handle 194 for carving once all of my kit arrives. WCS dogs are on the way for the 170 though.
Just built one of those for myself. Nice, light, perky little saw. Like the 180 and 211, there are two versions of that saw; yours is the newer version, based on the top cover. Some parts are not interchangeable.