Even in Iraq and Afghanistan it was commonplace to have the m1's equipped with the anti-rpg cages. Can't imagine why they would take them off. I'd think they would offer some protection and a good frame for a closer knit if needed.
@Railing5132 Perhaps if you are trying to move said M 1 by air or train and paying the freight by the tonnage to said fuel? I bet you'd be looking for ways to reduce weight.