microstamping

English

Etymology

micro- +‎ stamping

Noun

microstamping (uncountable)

1. The use of laser technology to engrave a microscopic marking onto the tip of the firing pin and onto the breech face of a firearm, so that spent cartridges give information about the firearm.
   • 2007 September 24, “An Opportunity for Mr. Schwarzenegger”, in New York Times‎^[1]:

     The measure would make California the first state to require that all new semiautomatic weapons be equipped with technology known as microstamping, which imprints microscopic markings as a gun fires.