California lawmakers seek to force gunmakers to 'microstamp' bullet casings, US gun control

Advocates seek enforcement of 2007 measure that would link casings to the guns that fired them

California Senate Takes Action: Mandatory Microstamping on Handgun Ammo — What's Next for Gun Owners?, by Dr. ADAM TABRIZ

Microstamping Law Now Requires Stamp on Pistol Parts - USA Carry

Microstamping - Wikipedia

IMPORTANT INFORMATION FOR HANDGUN MANUFACTURERS PURSUING THE CALIFORNIA MARKET - CRPA

Judge blocks California law requiring safety features for handguns

California city declares itself a gun 'sanctuary' in rebuke to liberal laws, California

US appeals court prevents California from banning guns in most public places

California Democrats misfired by taxing guns and ammo - Los Angeles Times

New York enacts microstamping gun law in push to change how firearms are made

Women Against Gun Violence - CALL TO ACTION! California's microstamping bill -- AB 2847 -- is in the California Senate Public Safety Committee on July 16th. Have you heard of “microstamping?” Microstamping

Microstamping: The Unreliable Attempt to Tie Spent Cartridge - Guns and Ammo

Gun control: How California got tough - CalMatters

Admit It: CA Bullet Microstamping Law Is A Semi-Auto Gun Ban, by TrigTent