The proposals passed with a vote of 223 to 204,with five Republicans - four of whom are not seeking re-election - joining most Democrats in backing the legislation.
It has almost no chance of becoming law as it will come down to the evenly split Senate,where the Democrats have only 50 votes out of 100 needed for passage.
Also at the hearing was Miah Cerrillo’s father,Miguel,who told the committee how his daughter had not been the same ever since the massacre.
“I’ve lost my baby girl,” he said,choking back tears. “She is not the same girl that I used to play with and do everything with … I thank y’all for letting me be here to speak out but I wish something would change,not only for our kids,but every single kid in the world because it’s not safe.”
Other witnesses included Felix and Kimberly Rubio,the parents of Lexi Rubio,who was one of the 19 children killed in Uvalde;Zeneta Everhart,the mother of Buffalo shooting survivor Zaire Goodman;and Dr Roy Guerrero,a paediatrician who treated many of the victims in Uvalde.
In chilling detail,Guerrero recalled what he saw in the emergency room:the cries of mothers that “I will never get out of my head” and the sight of children “whose bodies had been pulverised by bullets fired at them. Decapitated,their flesh had been ripped apart.”
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“Innocent children all over the country today are dead because laws and policy allows people to buy weapons before they’re legally old enough to even buy a pack of beer,” he told the politicians on Capitol Hill.
“I do my job ... please,please do yours.”
The shooting at Robb Elementary took place merely 10 days after another 18-year-old opened fire at a supermarket in a predominantly black neighbourhood in Buffalo,New York. The racially motivated attack killed 10 people,and wounded three others.
Last week,anothermass shooting also occurred at a medical facility in Tulsa,Oklahoma,when a man gunned down his doctor and three others before killing himself.
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But whilemomentum has been building for change across the country,most Republicans strongly support the Second Amendment right to keep and bear arms,and many have made it clear they do not want broad-ranging restrictions on the sale of guns – even the assault-style rifles that were used in the Uvalde massacre.
Nonetheless,in addition to the bills being pushed in the House,Senate negotiations are currently taking place,with a small bipartisan group looking at measures such as upgrades to school security,strengthening mental health services,and doing more to keep guns out of the hands of people who are legally barred from owning them.