Maryland is not even bothering to catalog the spent cartridge cases they demanded under a law passed there. Not one crime has been solved with this colossal waste of taxpayer funds, and the money has been diverted to hiring more state troopers.
Microstamping is just another anti-gunner wet dream that won't pan out, and is easily thwarted with a file and sandpaper, or swapping parts. The main purpose of the law is a de facto gun ban and an attempt to foist anti-gun state laws onto the 49 other states, making it for all practical purposes a national gun law.
It's high time manufacturers started boycotting states doing this crap. Gun manufacturers have already appeased states that demand loaded chamber indicators, more safeties, etc., but that was not good enough. Once manufacturers caved in the anti's were right back with more and more demands.