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Support is growing in Congress for a closer look at firearm accessories that make weapons fire more rapidly.

FOX's Jared Halpern has more from Capitol Hill:

A lot of lawmakers here are still learning about bump stocks, an accessory designed to make semi-automatic weapons fire more rapidly:

(Barasso) "For a guy from Wyoming who owns plenty of guns, it's something I'd never heard of until yesterday with this news."

Senator John Barasso is among a growing group of Republicans open to hearings on bump stock legislation. That's encouraging for long-time gun control advocate Democrat Richard Blumenthal:

(Blumenthal) "I think it could be a prelude to other common sense measures gaining traction."

House Republican Carlos Curbelo has introduced a bump stock bill, along with several Senate Democrats.

On Capitol Hill, Jared Halpern, FOX News.

Follow Jared Halpern on Twitter: @JaredHalpern