Brentwood man who allegedly used 3D printer to stop assault weapons

BRENTWOOD, Calif. (KRON) — A man who allegedly used 3D printers to make firearms has been arrested by Brentwood police following a months-long investigation, according to a Brentwood PD social post. Scott Leeper, 23, of Brentwood, was arrested on Wednesday by Brentwood PD Investigation Division officers who executed a search warrant.

At Leeper’s residence, located in the 2000 block of Azalea Way in Brentwood, officers found containers of various calibers of ammunition, 3D printers used in the manufacture of firearms, 3D printing supplies and two semi-automatic rifles. Also at the scene were 30-round magazines, various tools and parts used in the manufacture of weapons and several other firearms.

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The firearms found at Leeper’s home were usable but not registered with the California Department of Justice, police said. One of the unregistered weapons met the California criminal code definition of an “assault weapon,” police said.

Leeper was arrested and remanded to Martinez Detention Center on unlawful possession of an assault weapon, manufacturing an assault weapon, and other firearms charges.