Sen. Chris MurphyChristopher (Chris) Scott MurphyFlake's anti-Trump speech will make a lot of noise, but not much sense Senate campaign fundraising reports roll in Puerto Rico's children need recovery funds MORE (D-Conn.) noted that these new rules were signed into law 110 days after the Newtown, Conn., shooting that took the lives of 26 people, including 20 elementary schoolchildren. Murphy said the state law is a "model" for federal legislation.

"Connecticut has proven that Republicans and Democrats can come together to pass tough, common sense gun laws, and I hope my colleagues in Congress will join me in the coming weeks to get this done for our country," he said.

"Now Congress needs to act," said Rep. Rosa DeLauro (D-Conn.). "I urge my colleagues to follow Connecticut's example and set our differences aside to agree on common-sense solutions so that no one has to suffer as the families in Newtown, Aurora, Tucson, Blacksburg and too many others have."

Rep. Jim Himes (D-Conn.) also praised members of both parties in the state for "putting partisan politics aside and doing what is right to protect our children and families."

Despite this encouragement, it seems far less likely that Congress will pass something as tough as Connecticut has. Senate Majority Leader Harry ReidHarry Mason ReidDems search for winning playbook Dems face hard choice for State of the Union response The Memo: Immigration battle tests activists’ muscle MORE (D-Nev.) said in March that there are not enough votes for an assault weapons ban or language limiting the size of ammunition clips.

Instead, the Senate is on track to pass bail this month that would increase security funding for schools, expand federal background checks and make straw weapons purchasing illegal.