SARATOGA SPRINGS, N.Y. — A smiling Gabrielle Giffords toured rows of tables loaded with rifles and handguns Sunday in her first visit to a gun show since surviving a 2011 shooting, and pleaded afterward for people to come together to stop gun violence.

The former Arizona congresswoman visited the Saratoga Springs Arms Fair with her astronaut husband, Mark Kelly, and New York Attorney General Eric Schneiderman to highlight a voluntary agreement that closely monitors gun show sales in New York.

The trio mixed with a gun show crowd that was mostly welcoming.

“We must never stop fighting,” Giffords said at a post-tour news conference, her fist in the air.

Giffords, a face of the national gun control effort, walked hand-in-hand with Kelly through displays of Winchester rifles, muzzle-loaders, antique knives and other weapons; “Don’t Tread on Me” flags hung from poles.

They stopped at display tables, Kelly asked dealers questions about the weapons, and Giffords shook hands and smiled when people greeted her.

Kelly bought a book on Colt revolvers, and said later he probably would have bought a gun if he had had more time. He said both he and his wife are gun owners.