Christopher Oleksik was arrested after authorities searched his home on Glenbrook Avenue Thursday, according to the Ventura County Sheriff's Office. Detectives found about 20,000 rounds of ammunition, four AR-15 rifles, several handguns, body armor and more. They also located heroin in his bedroom.
Some of the weapons were described by authorities as "ghost guns," firearms that are manufactured without a serial number.
Additional weapons were also seized from a storage unit associated with the 38-year-old.
Oleksik was booked into the Ventura County Pre-Trial Detention Facility but was released on $105,000 bail. He is due back in court at the end of the month.