The concept of “micro-stamping” is that a firearm’s firing pin or other internal parts could imprint, onto fired ammunition cartridge cases, unique microscopic codes, that the codes could be entered into a computerized database before the firearm leaves the factory, and that police investigators could pick up a cartridge case left at a crime scene, identify the markings on the case, run them against the database, and identify the criminal involved.
However, micro-stamping has repeatedly failed in tests, micro-stamped markings are easily removed, most guns do not automatically eject fired cartridge cases, only new guns—a small percentage of all guns—would be micro-stamped, most gun crimes cannot be solved by micro-stamping, most crimes don’t require micro-stamping to be solved, and most criminals get guns through unregulated channels that would not be affected by a micro-stamping requirement.
In 2008, the National Academy of Sciences evaluated the feasibility, accuracy and technical capability of a possible national database of so-called “ballistic images” from new guns sold in the United States. Citing a number of factors, the evaluation concluded, “A national reference ballistic image database should not be established.”
Established in 1975, the Institute for Legislative Action (ILA) is the "lobbying" arm of the National Rifle Association of America. ILA is responsible for preserving the right of all law-abiding individuals in the legislative, political, and legal arenas, to purchase, possess and use firearms for legitimate purposes as guaranteed by the Second Amendment to the U.S. Constitution.