“President Obama was the best gun salesman the world has ever seen,” Karl Sorken, a production manager at Battle Rifle Co. in Houston. Sorken is an Army veteran and self-described liberal who voted for Obama and notes the change for the industry under Trump is a topic of conversation in the shop.

Fears of government limits on guns — some real, some perceived — led to a surge in demand during Obama’s tenure and manufacturers leapt to keep up. Over the decade ending in 2015, the number of U.S. companies licensed to make firearms jumped 362 percent.

“The trends really almost since Election Day or election night have been that gun sales have slacked off,” said Robert Spitzer, political science department chairman at State University of New York at Cortland. “When you take away Barack Obama and you give the Republicans control of both houses of Congress, which is extremely friendly to the gun lobby, then the political pressure subsides. And that surely is at least a key part of the explanation for the drop-off in sales.”