Gov. Pat Quinn's office is reviewing a federal appeals court's decision to strike down a ban on carrying concealed weapons.

Illinois is the only state where carrying concealed weapons is illegal.

Quinn has been in favor of strict gun control laws and proposed an assault weapons ban earlier this year, which lawmakers voted down. Spokeswoman Brooke Anderson says the Chicago Democrat's office is reviewing the opinion. She didn't immediately have further comment.

The 7th U.S. Circuit Court of Appeals announced Tuesday that lawmakers have 180 days to write a new law legalizing concealed carry.

The ruling is a victory for gun rights advocates, who argue that the prohibition against concealed weapons violates the U.S. Constitution's Second Amendment and what they see as Americans' right to carry guns for self-defense.