What you do not hear is that the firearms industry is one of the chief sources of information to the law enforcement community about criminal attempts to obtain guns. Dealers work with police on a daily basis on such issues. They cannot sell a gun unless the person buying it passes a background check. They cannot sell a gun to one person if they know the gun is actually intended for someone who cannot lawful possess it. If they violate these rules, they should go to jail.
Firearm manufacturers help the police by tracing guns found at crime scenes.
It knows that the police are already on the job. Any effort it makes to interfere could get undercover officers or employees of the manufacturer killed. Some of the mayors have sued the firearm industry because we do not build locks into our products. This is a canard. There is no gun made that cannot be locked.