The suit seeks to establish federal monitoring of the military’s compliance with reporting laws, after lapses were exposed following a massacre at a Texas church.
The Justice Department is continuing to work on the issue of bump stocks, despite public and private misgivings of its own officials.
The House easily passed legislation requiring each state to recognize another state’s concealed-carry gun permit. But the bill faces doubt in the Senate.
The House Judiciary Committee on Wednesday advanced legislation to mandate that all states must accept any other state’s concealed-carry gun permit.
A review by the military has found several dozen cases where it failed to report serious criminal convictions to the federal gun background-check databases.
A gun safety group founded by Gabrielle Giffords is trying to shut down websites that sell materials to build homemade weapons.