"We have more guns than we have people in this country," said Hasan Piker. "It's increasingly easy to get your hands on more. And the common-sense solutions are simple, and yet politicians can't seem to get anything done."
The march and rally came after a recent series of deadly mass shootings, including the massacre at an elementary school in Uvalde, Texas.
Several teenagers and young adults joined activists and community members for Saturday's march.
Some in the crowd are relatives of victims of gun violence, others are survivors of mass shootings.
In 2018, Cameron Kasky, one of the organizers of Saturday's event, was a student at Marjory Stoneman Douglas High School in Florida when a gunman walked in and killed 19 people.
"I have seen politicians tell me and my friends that we're the generation that's going to make a change," Kasky said. "I have seen politicians make promises, that 'we're going to ban assault weapons.' I have seen politicians make every promise in the book, and you know what? Here we are, it's 2022 and the shootings are only ramping up."
Demonstrators say they won't give up, and they won't stop fighting for change.
"One in 3,000 Americans will be shot this year," said Dr. Jeffrey Birnbaum who works at the Children's Hospital Los Angeles. "This is not normal, and this is not OK. I do not accept that this is the price that we have to pay to live in this country. This is an epidemic."
Activists say they are planning, what they're calling, a national week of resistance in October.