Well-regulated meant well equiped when the constitution was signed. That's where "regulars" comes from in military usage. This was addressed in heller by a libe

Well-regulated meant well equiped when the constitution was signed. That's where "regulars" comes from in military usage. This was addressed in heller by a liberal majority supreme court: https://en.m.wikipedia.org/wiki/District_of_Columbia_v._Heller https://en.m.wikipedia.org/wiki/District_of_Columbia_v._Hell...