Instructions
Write a letter to explaining the circumstances of the situation. Provide your full name and complete mailing address. When the FFL notified you that the purchase was denied he also gave you the NCIS Transaction Number or State Transaction Number. Include the number with your letter.
Mail the letter to:
Federal Bureau of Investigation
Criminal Justice Information Services Division
NICS Section
Appeal Services Team, Module A-1
Post Office Box 4278
Clarksburg, WV 26302-4278
Include a fingerprint card as an option. According to the FBI "you must have your fingerprint impressions rolled or electronically scanned by law enforcement or another authorized fingerprinting agency. The agency preparing your fingerprints must provide an agency name, address, telephone number, and an Originating Agency Identification number (as assigned by the FBI) and the legible signature of the person who rolled your fingerprints on the fingerprint card. The reason fingerprinted should be marked "For NICS Purposes." The omission of any required information (as listed above) may result in a rejection of your fingerprint card."
Wait up to five days for a response from the NICS Section's Appeal Services Team. They will send your approval via the mail, along with a letter for your FFL. If the appeal is denied because of adverse information on your file then you must contact the organization providing the FBI the information and correct it with them. The Appeal Team will then take a look at the corrected information and make a further determination as to your eligibility to purchase a firearm.