HOUSTON — Before the election, gun rights activists were so worried Hillary Clinton would win the presidency that some of them bought extra ammunition and guns, fearing a crackdown on certain weapons, bullets and magazines.

They’re not worried now. Instead, since the election of Donald J. Trump, gun advocates have been rejoicing, crowing about their political clout and plotting ways to eliminate many remaining curbs on gun ownership and use as they await one of the most vocal pro-gun presidential candidates ever to enter the White House.

“We’ve been threatened. We’ve been bullied. We’ve been ridiculed for eight years,” said Alice Tripp, legislative director of the Texas State Rifle Association, the state affiliate of the National Rifle Association. “I expect the tone to change. If tone sets policy, then we’ve got it made.”

It was more than just the outcome of the presidential race. Gun advocates played a role in flipping the State Senate in Iowa from blue to red and helped defeat a ballot initiative in Maine that would have required universal background checks for gun sales.