Should advocates of gun control be optimistic that this time might actually be different?

Not yet.

Republicans indeed expressed genuine alarm after watching videos of the shooting that showed the apparent capability of bump stocks to turn a gun that is legal in the United States—a semiautomatic rifle—into something resembling a fully automatic weapon, which is illegal. And the NRA’s statement seemed to grant permission to its allies in Congress to take at least a modest step toward additional restrictions. “I think they should be banned,” Representative Bill Flores of Texas, a former chairman of the conservative Republican Study Committee, told The Hill. “There’s no reason for a typical gun owner to own anything that converts a semi-automatic to something that behaves like an automatic.”

But there are no plans for Congress to move quickly on legislation, nor is there consensus within the GOP that the House and Senate should act at all. In part, that’s because most Republicans, many of whom own guns, had no idea what bump stocks were before Sunday’s shooting. “A lot of us are just coming up to speed,” Ryan told reporters on Thursday. “We just need to do more research to make sure the spirit of the law is being upheld.”

A spokeswoman for the speaker offered no information on what steps Republicans might take next. In the House Judiciary Committee, Chairman Bob Goodlatte of Virginia, a staunch supporter of gun rights, is “looking into the issue,” a committee aide said. But he has not decided whether even to hold hearings on bump stocks. Senate Majority Leader Mitch McConnell, meanwhile, told reporters on Tuesday that it was “premature to be discussing legislative solutions” after Las Vegas and has said nothing since.

The NRA’s position is also subject to misinterpretation. In its statement, the powerful gun lobby put the onus on the Department of Alcohol, Tobacco, and Firearms—not Congress—to immediately review whether bump stocks comply with federal law. And in an appearance Thursday night on Fox News, NRA President Wayne LaPierre made clear that the organization supported “additional regulation” of bump stocks, not an outright ban.

Some Republicans, including White House counselor Kellyanne Conway, have pointed to decisions made by the ATF during the Obama administration that allowed for the legal sale of bump stocks. But a bureau spokesman said in an email Friday that ATF does not approve the devices; it merely determines what classification they fall under—a firearm, a part, a silencer, and so on. The ATF in 2010 determined that bump stocks are an attachment to a gun that replaces its grip and suppresses its recoil, but doesn’t on its own cause the gun to fire automatically. As such, the bureau said they were not subject to regulation under either the Gun Control Act or the National Firearms Act.