Some people look at the gains made by the prohibitionists and wish to stop it through open combat. Those are folks who have not been to war. Civil wars are far more difficult, expensive and nasty than any political effort.
Remember, guns are defensive tools. Their purpose is to keep lawful humans alive and unhurt. For the offensive to re-take our rights, we need stronger weapons: our minds.
If you wish to safeguard your rights, start by doing what you can now. Those who would not make the effort from the safety and comfort of their homes cannot be relied on to take up arms, either. Convince your elected representatives. Convince your neighbors. Support friendly organizations. Teach safety, techniques of firearm use. There's so much you can do that doesn't require killing or getting killed.
We cannot keep our civil rights without defeating the opposition's propaganda, so do not be shy about educating others. Help produce ads and educational materials that support your views and inform the fence-sitters. Please vote for candidates who have consistently supported the Second Amendment in the past. Select a definite goal, such as the repeal of the ban on effective firearms for self-defense in your home state.
In talking to people, please keep other issues out of the discussion. We are in a fight for our way of life: please do not drive away your squad-mates, even if you do not like them personally. That they are on your side is all the recommendation that they need. These people are already our allies: do not drive them away!
If you wish to help but not sure where to start, talk to your allies. Together we can form a plan of action.