SB 704, landmark legislation, will regulate and require background checks on the purchase of firearm barrels —  the only parts of a functional firearm that cannot effectively be produced using a 3D printer. Currently, these barrels are entirely unregulated and can be purchased online or in-store without a background check or any restrictions, contributing to their use in crime. This vital solution, which was championed by Sen. Jesse Arreguín and Assemblywoman Catherine Stefani, will help prevent individuals from manufacturing  untraceable illegal ghost guns. 

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