Thanks to a suggestion from Mike (a.k.a. Mr Completely), we have changed the classes slightly. Class 2 and 4 will include UNMAGNIFIED OPTICAL SIGHTS (e.g. red dots). Any MAGNIFIED OPTICAL SIGHT will be considered an unlimited class gun. He correctly points out that the advantage really comes from the magnification, not the mere optical sight. These changes are reflected in the general guidelines section of the blog.