WASHINGTON -- Wal-Mart is striking a deal with New York Mayor Michael Bloomberg on tighter standards for gun sales.

Wal-Mart is the nation's largest seller of firearms and Bloomberg is an outspoken gun control advocate.

Bloomberg is announcing the initiative Monday as he meets with Mayors Against Illegal Guns. He founded that group to try to crack down on the unlawful traffic in weapons that are often used in crimes.

Under the group's Responsible Firearms Retailer Partnership, Wal-Mart Stores Inc. will agree to keep certain records.

Mayoral spokesman Jason Post says that if a gun buyer is linked to a crime, the company will be aware of it the next time that person tries to buy a gun.

Wal-Mart also will also conduct background checks on employees who handle guns.