Rally: No, California does not recognize any other states concealed license.
Also, your AR sounds like it is a rifle. The transport of a rifle and hand gun are similar, there.
Viper: Yeah, seriously. For some reason a lot of you guys on here seem to think that in California, it is all big shoot outs and danger behind every corner. I lived there for most of my life, was in only a couple of situations(places) where I felt the hair go up on the back of my head, and I bugged out fast. But in general, I did not feel the need to carry, as much as I might have wanted to. I feel pretty much the same way up here, although, I do prefer the option of concealed carry. I guess it really depends upon where you go. I don't disagree with you about wanting to have the option of being able to defend yourself. However, as the OP asked, what should he do while traveling down there. The CA Law says one thing. I might not agree with it, but I am not going to tell him to break the law. It sounded as if he wanted information about how he could transport his firearm and ammo legally. Legally, it is locked in a case, unloaded, separate from the ammo. Do anything else, that is your business, but you can't come back at me and say, "But he said!"
sounds to me like the OP knows what he was going to do... but wanted to know 'what you would do'