Maryland ghost gun law took full effect in 2022 to close a major loophole: untraceable firearms built from kits or 3D-printed parts. Under Public Safety Article § 5-703, it is now illegal to possess, sell, transfer, or manufacture any “non-serialized” firearm or unfinished frame/receiver unless it bears a unique serial number applied by a Federal Firearms Licensee (FFL). Violations carry up to 2 years in prison and a $10,000 fine, stackable with other gun charges.
This guide covers every rule, deadline, exception, and enforcement update so you stay compliant and avoid felony charges.
What Is a “Ghost Gun” in Maryland?
A ghost gun is any firearm without a factory-applied serial number, including:
- Fully assembled guns
- 80% receivers or frames (partially finished)
- 3D-printed firearms
- Privately made firearms (PMFs)
Key Definition: An unfinished frame or receiver is any piece that can “readily be completed, assembled, or converted” into a functional firearm.
Core Requirements of the Maryland Ghost Gun Law
| Rule | Details |
| Serialization Required | All ghost guns must have a unique serial number engraved by an FFL |
| Upload to MSP Portal | Serial number + owner info must be submitted via the Maryland State Police licensing portal |
| No Sale/Transfer Without Serial | Illegal to buy, sell, give, or receive any non-serialized firearm or part |
| No Manufacturing Without License | Only FFLs can serialize; individuals cannot self-serialize |
Compliance Deadlines
| Scenario | Deadline |
| Pre-June 1, 2022 possession | March 1, 2023 to serialize |
| Inherited after June 1, 2022 | 30 days from inheritance |
| New builds/kits | Must be serialized before taking possession |
Missed the deadline? You are now in illegal possession of a ghost gun.
How to Serialize Your Firearm (Step-by-Step)
- Locate a licensed FFL offering “marking services”
- Schedule drop-off (you cannot mail parts)
- FFL engraves a unique serial number (format: MD-XXXXXX)
- FFL uploads info to MSP portal
- Receive confirmation (keep this document)
Cost: $50 to $150 per firearm (varies by FFL)
Penalties for Violating Maryland’s Ghost Gun Law
- Misdemeanor (first offense)
- Up to 2 years in prison
- Up to $10,000 fine
- Firearm confiscation
- Additional charges (e.g., illegal possession, transport)
Stacking Example: Illegal transport + ghost gun = 5+ years possible
FAQs
Can I still build my own AR-15 in Maryland?
Yes, but only if you purchase a completed, serialized lower receiver from an FFL or have an 80% lower professionally serialized before assembly. You cannot finish an 80% lower yourself.
What if I bought a kit before June 1, 2022?
You had until March 1, 2023, to serialize it. If you didn’t, you must now surrender it to law enforcement or face charges.
Do Polymer80 kits still ship to Maryland?
A: No. Major manufacturers block shipments. Attempting to receive one is a felony.
Can police tell if my gun is a ghost gun?
Yes. During any stop, they check for serial numbers. Lack of one equals immediate arrest.
Is there an amnesty program?
No. Maryland offers no grace period, only prosecution.
Charged with a Ghost Gun Violation? Act Now
One ghost gun charge can derail your life. The Maryland gun attorneys at The Law Offices of Krum, Gergely, & Oates have successfully defended clients against ghost gun charges, forced compliance errors, and MSP portal disputes. Contact us today by calling (301) 840-0080 for a free consultation.
