being a felon means they cannot own firearms. i have seen their son leeland with guns though. it was on one of the episodes.
they preach there are less than lethal ways of apprehending fugitives from the law. they use stun guns and mace over firearms.
i know quite a few bounty hunters in the detroit area. they all carry guns. ofc you can find a fully auto ak in detroit for 300-400 on the streets. got to have some way to at least try to match the fire power.