Thousands of demonstrators rallied Saturday in Washington to demand tougher gun control laws, many describing themselves as first-time capital marchers who’ve had enough of gun violence.

On a cold day, a vanguard led a blocks-long procession with a big blue banner, declaring “March on Washington for Gun Control: When we stand together, we stand a chance.”

The demonstrators want reinstatement of the federal ban on the sale of military-style semi-automatic rifles such as the one used in the recent Newtown, Connecticut, school shooting that left 20 children and six adults dead, plus the gunman and his mother. The protestors also want a ban on the sale of high-capacity ammunition magazines and universal background checks.

Many marchers just carried black-and-white placards bearing the names of victims of gun violence, such as Veronica Soto, a Newtown teacher who was killed in the Sandy Hook Elementary massacre.

More: Gun Control Advocates March as Nation Reels From School Shootings