The Detroit Free Press has the details here:
The Hutaree terror case officially ended today with the last two defendants cutting deals with the government, two days after their five codefendants were cleared of all charges by a federal judge. ... [T]hey pleaded guilty to possession of a machine gun that is punishable up to 10 years in prison. The judge agreed to release the two on bond. ... Under the terms of the plea agreements, Stone Sr. faces 33 to 48 months in prison. Joshua Stone faces 27-33 months. They will be sentenced in August. ... Both men have been jailed since their arrests in 2010.
My hunch is these two guys get credit for time served and a long parole.
And, of course, as convicted felons they will not be able to possess firearms ever again.
Much more at the link.