Realistically, I can't answer that question without more questions.

First, why am I searching?

Second, was the vehicle or the driver involved in a criminal activity?

Third, what is the criminal history of the owner/driver?

Fourth, are all the firearms, legal firearms?

So, I'm going to assume I know what Byte is asking; he was stopped for a traffic violation, gave consent to search, isn't a convicted felon and there aren't any illegal controlled substances in the vehicle. In this situation, I would probably clear the serial numbers of the firearms to determine if they have been reported stolen and barring that, I would return Byte's documents to him and wish him a good day (maybe write a ticket...it is Byte after all )