"Suppressors" are already legal; one just needs to submit an application and fee to the Feds to get one. The current bill to make them easier to get will still require a background check to purchase one. It's comes down to being a safety issue. My father wears hearing aids because of all his years of shooting without hearing protection. The fallacy is that suppressors truly silence a gunshot, which is false, but they do muffle the report of gunfire quite a bit.