Farina says he forgot that the gun was in his luggage and was originally booked on a misdemeanor charge on $25,000 bail.
But when officials found out the gun was neither licensed nor registered to Farina, he was booked on a felony charge and bail was raised to $35,000.
Farina was held at Van Nuys jail until he posted bail Sunday night.
Farina is a popular television and movie actor, and has starred in "Law & Order" and "What Happens In Vegas," which opened this weekend.
