No I am not. I did not say "it says" it dos not say anything. It is talking about the class of people, not their weapons. The entire context of the second amendment and the history around it makes it clear they are talking about militia (traditionally all non felon able bodied men, now including women) having the ability to form up with their own arms to oppose, or more importantly to deter from happening in the first place, tyrannical actions or tendencies or foreign forces. Not pitchforks against muskets, not muskets against bolt action cartridge firing rifles, and not bolt action rifles against m4s.
That s my point. There is no definition of arms because the arms being specified CHANGE over time to whatever arms of regular infantry.
That is my point and my problem with the OP construction of the question as to what arms the authors meant. They don't mean a type of weapon, they mean a weapon usage (infantry not irregulars). "Arms" in the Amendment are defined by the context of the Amendment, they do not mean a rate of fire, accuracy, or action type -- they mean what contemporary infantry carries..
I found nothing like that in the Federalist Papers nor other literature of the time. There was no limiting in period literature "to what contemporary infantry" carried. Militiamen often carried rifles vs the muskets carried by the regular infantry. If I'm wrong, please point out the related document(s)