Or just change out the barrel and extractor and voila! Your handgun's 'ballistic fingerprint' is completely different. And since getting a barrel and extractor through the mail doesn't require an FFL, and these things are not difficult to change out (barrel very easy, extractor requires a little skill)...
Yet another waste of taxpayer money by the nanny.gov!
hell, a little emery, diamond paste, and a power drill does the same job in five minutes.