I contacted Boyd's and they told me since the M10 is basically the parent rifle and it would fit that it is the correct stock. The barrel channel is not cut enough for a varmint contour barrel to be floated. I told their service department and she indicated that this is considered a minor fitting issue and should use a dowel and sandpaper to open it up enough. I attempted to install the trigger guard but it will not fit at all. Is this common? It is the factory plastic Stevens trigger guard. Is the metal trigger guards any thinner? I eventually want to get one and I don't want to sand out the trigger guard area if it is not necessary.