After reading cluster's How They link, I continue to think of a good solution to fight back.
If an outright gun ban were passed, alot of states wouldn't enforce it. Perhaps to the point of secession.
Definitely, Texas would secede. Louisiana, Mississippi, Arkansas, Tennessee, and Kentucky would probably follow. As well, Montana, Idaho, Wyoming, North & South Dakota, Utah, Colorado and possibly Nevada would follow.
States such as Alabama, North Carolina, Georgia, Florida, and Virginia would have resistance, but probably wouldn't secede. North Carolina West of Asheville would probably join Tennessee.
Point is, the Most Pro-Firearm Sates would fight it tooth and nail. No Texas cop would enforce it.
My first suggestion would be (when such ban passes Congress) that every firearm owner in the People's Republics of:
New Jersey
New York
Connecticut
Rhode Island
Massachutsetts
Deleware
Maryland
Washington, D.C.
Ohio
Illinois
Wisconson
Minnesotta
California
Leave Town and move to a Borderline state (one that isn't anti, but isn't pro.) Shore up their lines. When and if it is signed, every gun owner in a borderline or Anti state should move to Texas, Louisiana, or Mississippi. These are 3 very pro-gun states.
Then, the gun-owners in those 3 could fight off the FEDs if necessary. Their legislatures would probably even secede from the union if guns were banned.