Authorities say a Montana man tried to bring four loaded, semi-automatic handguns past a security checkpoint at Sacramento International Airport and was being held without bail Friday.
Harold Waller, 45, was arrested Thursday afternoon after Transportation Security Administration officials found a gun in one of his carry-on bags, said Sacramento County Sheriff's Deputy Jason Ramos.
When TSA screeners conducted a more thorough check, they found Waller was carrying a loaded gun, and had two other semi-automatic weapons packed in his carry-on bags, Ramos said.
After Waller was arrested, deputies searched his car and said they found eight more guns, some of which were loaded.
Those guns were a combination of handguns and what he described as "long guns."
Ramos said a "significant amount" of ammunition was found in the car as well.
Waller, from Circle, Mont., was trying to board a US Airways flight to Phoenix.
He was booked on suspicion of unlawful possession of a loaded firearm, unlawful possession of a concealed firearm, possession of an unauthorized weapon in a public building and possession of a firearm within a sterile area of an airport, Ramos said.
Ramos said he could not say if Waller made any statements during or after his arrest. It was not clear whether Waller had retained an attorney.