Organizers said a fair on church grounds is no place for weapons or political statements.
The open carry group talked with police and was able to stay. There were no reports of arrests.
"We're here today to educate the public about their Second Amendment rights and to change the negative imagery of firearms associated with carrying firearms in public," said Harley Green, a member of the group. "We want to let people know that it's perfectly normal for responsible citizens to carry firearms for self defense in California."
It was expected that 20,000 to 30,000 people would attend the fair.
