Not sold as one part but only the replacement parts according the EKAT.
From #497207 or 497221 you need parts: 2, 5, 9, 10, 11, 12, 13 and 15.
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As Tom said you can use either flag stop. When I flip the stops down I leave it up off the surface. Nothing will screw up a setting faster than sawdust between the work piece and the stop. Take a look at the farthest stop in the picture, you will see the long arm is towards the UG support surface.