Democratic presidential candidate Joe Biden Joe BidenFormer Pence aide: White House staffers discussed Trump refusing to leave office Progressive group buys domain name of Trump's No. 1 Supreme Court pick Bloomberg rolls out M ad buy to boost Biden in Florida MORE on Wednesday unveiled his plan to combat gun violence, which includes banning the sale of assault-style weapons and an optional buyback program.

The plan would prevent the manufacture and sale of assault-style weapons and high-capacity magazines. Those with existing weapons would be required to either sell their firearms back to the government or register them with the Bureau of Alcohol, Tobacco, Firearms and Explosives, stopping short of a mandatory buyback program favored by some of his 2020 rivals.

The former vice president also called for the repeal of a law preventing gun manufacturers from being held liable for their products in civil cases, and urged the approval of universal background check legislation and the closing of certain loopholes.

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"While Democratic leaders and the American public have reached an undeniable and broad consensus about what needs to be done to address the gun violence epidemic that has engulfed communities across America, Donald Trump Donald John TrumpFederal prosecutor speaks out, says Barr 'has brought shame' on Justice Dept. Former Pence aide: White House staffers discussed Trump refusing to leave office Progressive group buys domain name of Trump's No. 1 Supreme Court pick MORE, Mitch McConnell Addison (Mitch) Mitchell McConnellDemocratic senator to party: 'A little message discipline wouldn't kill us' House to vote on resolution affirming peaceful transition of power Republican lawyers brush off Trump's election comments MORE, Congressional Republicans, and the NRA refuse to take any sensible action," Biden's campaign said in a statement.

"As president, Biden will not let anyone hold our nation’s children, families, and communities hostage to the scourge of gun violence Americans face every day," it added.

Biden would also dedicate $900 million over eight years to combat gun violence in 40 U.S. cities.

He released the plan ahead of his scheduled appearance on Wednesday at a gun safety forum in Nevada that will be hosted by advocacy groups Giffords and March for Our Lives.

The former vice president is considered one of the frontrunners in the crowded field vying for the 2020 Democratic presidential nomination.