Wiktionary
n. (context chiefly US politics English) An organized group which attempts to influence public policy and law with respect to firearms, especially as an advocate of ownership of and access to firearms by individual citizens.
Usage examples of "gun lobby".
Again, the Pentagon stayed with the gun lobby and its new idea for rocket-assisted shells at eight times the price per shell.
Smith says there's no good reason for private citizens to have machine guns, and challenges the gun lobby to come up with any legitimate uses for the deadly automatic weapon.
Despite continued nay-saying on the part of a few politicians and anti-gun lobby groups, the public could see the successful results, and those results proved to be an irrefutable argument.
The gun lobby claimed to have defeated nineteen of the twenty-four members on its hit list.
Meanwhile, the House continued to follow the NRA, voting to repeal the assault weapons ban and to delete from the anti-terrorism legislation sections the gun lobby opposed.