Carriers are allowed to transport guns...
Right on! I'm in process right now and specifically asked about firearms and security for them and was given very clear picture of how they would take them and transport them and return them to me at end of move. Two different movers told me the same thing, and not problem. Not sure I'm satisfied with security but it's not a problem for movers to transport, even in Kalifornia. Their concern was powder and primers but both said "just don't tell us about that since it's illegal." Pack them and shut up!