Neighborhood militias that could surround the confiscaters.
This is exactly what will happen. Bundy ranch type standoffs where the confiscators are surrounded ten to one. Moles within law enforcement will tip off the intended target.
Folks we had better turn up the heat to stop the oppresive arrogance of red flag laws or this will end very badly. We need to convince the President these laws will not stop mass murderers and are a clear recipe for disaster.
We also need to reverse the trend of the crazily armed army of federal agencies most of which have no business being armed in any capacity much less having hundreds of tactical teams armed with military weapons and equipment. History has shown this type of build up of arms often proceeds oppressive conquest. This is the reason we see the arrogance of openly talking about forced gun confiscation being considered by democrat presidential candidates and current office holders. In a nutshell they believe they have the military capacity within these federal agencies to forcibly disarm the American people. The Constitution provides for the people to be armed and the central government to establish the military but there is no Constitutional authority for heavily armed federal agencies.