How to Check and Verify Serial Numbers on Guns

looking at a gun's serial number

To check serial numbers on guns, start by locating the serial number, typically found on the firearm’s frame or barrel. Once you have the number, you can verify it through various databases or with local law enforcement to ensure the firearm’s legality. Using resources like these helps you stay compliant with Bureau of Alcohol, Tobacco, Firearms, and Explosives ATF regulations.

Table of Contents

The Importance of Checking Serial Numbers on Guns

A gun serial number is a unique identifier assigned to each firearm by the manufacturer, and it serves as a crucial tool for tracking its history and ownership. Serial numbers are used in various records, including purchase documents, registration, and legal transfers, making them essential for maintaining accurate records and verifying firearm ownership.

 

Serial numbers play an important role in gun safety, crime prevention, and compliance with federal law. By tracking these numbers, authorities can trace firearms back to their original owners, identify stolen guns, and link firearms to criminal activity.

 

For Gun Owners, Sellers, and Law Enforcement

 

For gun owners, maintaining an accurate record of a firearm’s identification number can help them recover it if it’s ever lost or stolen.

 

Gun shops play a critical role in ensuring that each firearm sold has a valid serial number and has passed a background check to prevent illegal transactions. Every firearms dealer must verify each gun’s serial number before completing a sale.

 

For law enforcement agencies, accurate serial number records are valuable in criminal investigations and in ensuring that all firearms for sale comply with federal regulations.

 

The Process of Checking a Gun’s Serial Number

The serial number is typically engraved on the frame, barrel, or receiver, but the exact location can vary depending on the make and model. For handguns, it’s often found on the frame near the trigger guard or under the grip. On rifles and shotguns, it’s usually on the receiver or barrel. You can also consult the instruction manual for the specific location on your firearm.

 

It’s important to check the model number, date code, and any letter prefix or suffix, as these details can provide additional information about the firearm’s origin, including the date of manufacture.

 

how to check serial numbers on guns

Step-by-Step Guide

  1. Locate the Serial Number: Identify and record the serial number from the firearm. Be aware that weapons from different models may have varying locations for their serial numbers. 
  2. Check Public Records: Visit your local police department to access public records that may include the history of the firearm. 
  3. Use Online Databases: Utilize online resources like the National Tracing Center to search for the serial number. These databases can reveal whether the firearm has been reported stolen, involved in a violent crime, or legally transferred. You can also request a trace through proper channels if needed. 
  4. Contact Law Enforcement: If you suspect the firearm has a questionable history, contact your local law enforcement agency to run the serial number through their records. 
  5. Document Your Findings: Keep a record of your search results to ensure that you have proof of your due diligence in verifying the firearm’s history. 

 

The National Tracing Center is one of the most reliable sources for firearm tracing. Other resources include state-specific databases and reporting agency records that allow users to check for stolen gun reports or those involved in a crime.

 

Why Checking Serial Numbers is Crucial 

Preventing the Sale of Stolen Guns

 

The legal implications of selling or buying a stolen firearm can lead to criminal charges and significant penalties. Federal law prohibits the possession, sale, or transfer of stolen firearms, and being caught with one can result in legal consequences. Checking serial numbers before any firearm purchase helps protect both the buyer and seller from unknowingly participating in illegal activity.

 

Assisting in Criminal Investigations

 

When a firearm is used in a crime, its serial number can be traced back to its original owner. This process can reveal whether the gun was stolen, illegally transferred, or involved in other criminal activities. Law enforcement may use a serial number range to identify batches of firearms from the same manufacturer during investigations.

 

Verifying the Gun’s Legitimacy

 

Ensuring that a firearm is not a ghost gun or firearm precursor part is essential for legal and safety reasons. Ghost guns present a significant challenge to law enforcement and public safety, and some criminals may attempt to destroy serial numbers to hide a firearm’s origin. Modern tracking methods, including digital serial number records, help combat this issue.

 

The ATF’s Obliterated Serial Number Program is an important tool here, allowing law enforcement to identify firearms trafficking and find recovered firearms that have been altered.

Why checking firearm serial numbers matter

The Challenges of Ghost Guns

 

Ghost guns are typically self-assembled from parts or ghost gun kits, and they don’t have a serial number. Unlike regular guns, which are manufactured by licensed companies and have a unique serial number for identification, ghost guns are untraceable because they aren’t subject to the same regulations. The lack of traceability complicates efforts to prevent illegal firearm distribution and investigate crimes involving these weapons.

 

Legal and Safety Implications of Serial Number Checks 

Under the Gun Control Act of 1968, all firearms manufactured or imported into the United States must have a serial number engraved on the firearm’s frame or receiver so they can be individually identified and traced. Federal law mandates that these numbers be maintained in a legible condition throughout the firearm’s life.

 

Gun dealers and private citizens hold significant responsibilities in ensuring that all firearms sold have valid serial numbers and are legally compliant.

 

  • Gun dealers must maintain accurate records of all firearm transactions and verify that each gun has a legitimate serial number before completing a sale. This includes verifying the purchaser’s eligibility through background checks.
  • For private sales, individuals must ensure that any firearm they buy or sell is fully compliant with federal and state regulations. A private transfer still requires due diligence to verify the firearm’s legitimacy. 

 

Checking a firearm’s serial number is not just a legal requirement but a crucial step in protecting oneself from potential legal troubles. If a firearm is reported stolen, law enforcement uses serial numbers to match recovered firearms with police reports of stolen guns, facilitating their return to the rightful owner. This recovery process is significantly easier when accurate serial number records exist for a particular firearm.

 

How FastBound Can Help Ensure Compliance and Safety 

FastBound seamlessly integrates with NTC Connect, making it easy for users to activate Auto Upload at no additional cost. This connection to the ATF National Tracing Center enhances the ability to trace firearms and support law enforcement efforts in combating illegal firearms activity and violent crime across the country.

 

With firearm regulations constantly shifting, accurate record-keeping has never been more critical. FFLs need dependable tools to stay compliant and operate with confidence, regardless of how requirements evolve.

 

FastBound offers:

 

 

Ready to simplify your compliance? Start a free trial today and discover how FastBound can streamline your FFL operations.

 

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Article reviewed 01/09/2026

Shae Neumann

Sales & Marketing Coordinator

About the Reviewer:

Shae is the Sales and Marketing Coordinator at FastBound, the leading provider of firearm compliance software trusted by FFLs nationwide. At FastBound, Shae focuses on building strong customer relationships and sharing insights that empower dealers to operate more efficiently. Outside of work, Shae enjoys spending time with her dogs and exploring the latest technology trends, blending a love for innovation with everyday life.

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