Sacramento County Sheriff's deputies arrested Marcus Kiplinger on suspicion of possession of a destructive device, possession of stolen property, possession of an illegal high-capacity weapon magazine and possession of a firearm silencer.
He was booked into Sacramento County Jail on $500,000 bail.
Deputies said they were called to Kiplinger's home in the 3100 block of Bakula Way about 7 p.m. regarding a family disturbance. The caller told dispatchers that a man in the home had explosive material.
When deputies arrived, Kiplinger was outside. Another resident of the home gave deputies the right to search the home, and, once inside, the officers found a gray material the consistency of clay in the garage.
Suspecting it was some sort of explosive, family members were sent out of the home and the sheriff's bomb squad was called in. Neighbors within 300-feet were evacuated.
Bomb experts determined that the material in the home was C4 explosive. The material was safe in the form it was found, according to a sheriff's department press release.
However, additional items capable of detonating the C4 were found at the scene, deputies said.
Detectives also allegedly found illegal fireworks and an investigation was underway to determine motive for possessing the C4.