I haven't seen anything that would indicate the inclusion of rack mount ears in the box with the M2200. As you may have already discovered, most M200 users who elected to rack-mount went with
these . Since many of the M200's and M2200's sold will not ever end up in a rack-mount situation (probably a substantial majority, based on much of the discussion I've seen in the M200 thread over the years), Outlaw may not want to include ears in every package. If the M2200 does not ship with ears, maybe the Outlaws would consider offering rackmount ears for sale for those who need them.