New Jersey Criminal Statute Guide
N.J.S.A. 2C:39-3: Prohibited weapons and devices
This is a collection of distinct offenses. Item definition, knowledge, lawful purpose, exceptions, and offense date control.
Plain English
What 2C:39-3 actually prohibits
Separate subsections regulate destructive devices, sawed-off shotguns, silencers, defaced firearms, listed knives, ammunition, magazines, handcuffs, conversion devices, covert/undetectable and unserialized firearms, and digital instructions.
Each item has its own rule. Sawed-off shotgun possession is third degree and defaced-firearm possession is fourth degree; both firearm branches are within Graves Act coverage. Hollow-nose ammunition may be kept at a dwelling or carried home from purchase, while dealer, collector, military, law-enforcement, and special-use exceptions are narrower and subsection-specific. New Jersey does not enforce subsection (h) as a blanket ban on an adult's possession or sale of a stun gun, but restrictions remain for minors, unlawful use, and people disqualified from weapon possession. P.L.2025, c.363 was approved and took effect January 20, 2026.
What the State must prove
- Knowing possession and technical classification under the charged item-specific subsection.
- Any added element: no explainable lawful purpose for listed knives, inappropriate circumstances for handcuffs, manufacture intent for digital instructions, or the required firearm/serial facts.
- For subsection (l), a bump stock, trigger crank, or machine-gun conversion device capable of being affixed to a firearm, while the person is not in possession of that firearm; plus absence of any applicable subsection-specific exception.
Degree and Exposure
The grading rules matter
Destructive devices, sawed-off shotguns, conversion devices, covert/undetectable and unserialized firearms are generally third degree; many other items are fourth; handcuffs are disorderly persons. A subsection (l) conviction does not merge with assault-firearm or machine-gun possession. Its sentence is consecutive to assault-firearm possession; the statute does not impose that same consecutive command for the machine-gun count.
| Level | Ordinary imprisonment range | Maximum ordinary fine | Usual court |
|---|---|---|---|
| Third-degree subsections (a), (b), and (l)-(n) | 3 to 5 years | $15,000 | Superior Court |
| Fourth-degree subsections (c)-(f), (j), and (o) | Up to 18 months | $10,000 | Superior Court |
| Disorderly persons handcuffs | Up to 6 months | $1,000 | Municipal Court ordinarily |
Subsection and item map
| Subsection | Covered item or condition | Grade |
|---|---|---|
| (a) | Destructive device | Third degree |
| (b) | Sawed-off shotgun | Third degree |
| (c) | Firearm silencer | Fourth degree |
| (d) | Defaced firearm, except an antique firearm or antique handgun | Fourth degree |
| (e) | Gravity knife, switchblade knife, dagger, dirk, stiletto, billy, blackjack, metal knuckle, sandclub, slingshot, cestus or similar leather band studded with metal filings or razor blades imbedded in wood, or ballistic knife, possessed without any explainable lawful purpose | Fourth degree |
| (f) | Hollow-nose or dum-dum bullets under (f)(1); armor-piercing ammunition defined in 2C:39-1(gg) under (f)(2). The armor-piercing branch has a qualifying licensed curio/relic collector exception limited to three examples of each distinctive ammunition variation; the other ammunition exceptions are explained below. | Fourth degree |
| (h) | Stun gun; blanket adult-possession ban is not enforced under the Attorney General memorandum | Fourth degree in statutory text |
| (j) | Large-capacity ammunition magazine under 2C:39-1(y): more than 10 rounds for continuous, direct feeding into a semi-automatic firearm, excluding an attached tubular device holding only .22-caliber rimfire ammunition. Exceptions include the registered-assault-firearm competitive-shooting branch in (j)(1), the narrow registered-firearm provision for up to 15 rounds in (j)(2), and the specific duty, dealer, and special-use provisions explained below. | Fourth degree |
| (k) | Handcuffs possessed in circumstances not manifestly appropriate for lawful use | Disorderly persons |
| (l) | Bump stock, trigger crank, or machine-gun conversion device when no firearm to which it may be affixed is possessed | Third degree |
| (m) | A covert firearm under 2C:39-1(hh), an undetectable firearm under 2C:39-1(ii), or a firearm enclosed in a container or covering designed or modified to permit firing while enclosed and to disguise its shape so it does not resemble a handgun, rifle, shotgun, or machine gun | Third degree |
| (n) | Firearm assembled with a frame or receiver lacking a federally registered manufacturer serial number | Third degree |
| (o) | Firearm digital instructions under 2C:39-1(oo), knowingly possessed with intent to manufacture a firearm by a person who is not licensed or registered to manufacture firearms | Fourth degree |
These are statutory maximums and ordinary degree ranges, not a prediction of sentence. Restitution, assessments, probation conditions, merger, consecutive-sentence rules, prior record, and offense-specific provisions can change the practical result.
Proof Problems
The evidence is charge-specific
Classification
Measurements, mechanism, capacity, markings, files, and forensic function are item-specific.
Possession
Access, ownership, DNA, fingerprints, purchase records, and shared space address control.
Purpose and exception
Occupation, permits, collector records, residence, route, and legitimate use may decide coverage.
Defense Analysis
Issues counsel should test
Definition not met
Dimensions, operation, capacity, antique status, serial provenance, or file content may defeat classification.
No knowing control
Another owner or shared space may defeat possession.
Lawful purpose, antiques, and digital instructions
Subsection (d) excludes an antique firearm or antique handgun. Subsection (e) requires possession of a listed weapon without any explainable lawful purpose. Subsection (i) also protects nightstick possession by a private-security guard who is licensed to carry a firearm, has completed Police Training Commission-approved nightstick training, and is actually performing official duties. Under subsection (o), the State must prove knowing possession of the defined firearm digital instructions, intent to manufacture a firearm, and that the person is not licensed or registered to manufacture firearms. It need not prove that the person already operates as a manufacturer.
Ammunition exceptions depend on the paragraph
For hollow-nose or dum-dum bullets, subsection (f)(1) excepts law-enforcement officers and persons engaged in activities covered by 2C:39-6(f), including qualifying hunting, target shooting, and associated travel subject to that section's conditions. Subsection (g)(2)(a) permits keeping those bullets at a dwelling, premises, or other land owned or possessed by the person, and carrying them from the place of purchase to that dwelling or land. For armor-piercing ammunition under (f)(2), the collector exception requires a collector of firearms or ammunition as curios or relics under 18 U.S.C. 921(a)(13) who possesses a valid ATF Collector of Curios and Relics License. The limit is three examples of each distinctive ammunition variation; differences in head stamp, composition, design, or color count. The home and purchase-to-home provisions in (g)(2)(a) apply to (f)(1), not automatically to armor-piercing ammunition under (f)(2).
The two magazine-registration branches
Under (j)(1), the person must have registered an assault firearm under 2C:58-12, and the magazine must be maintained and used in connection with competitive shooting matches sanctioned by the Director of Civilian Marksmanship of the United States Department of the Army. Section 2C:58-12 established a historical registration program for qualifying listed target-shooting assault firearms purchased on or before May 1, 1990; it is not a current general registration option. Under (j)(2), registration must comply with 2C:39-20: the person must have lawfully owned the qualifying firearm before June 13, 2018 and registered it within one year of that date. The qualifying firearm must have either a fixed magazine holding up to 15 rounds that cannot be modified to accommodate 10 or fewer, or accept only a detachable magazine holding up to 15 rounds that cannot be modified to accommodate 10 or fewer. An ordinary 15-round magazine does not qualify merely because it was owned before the 2018 law.
Duty, dealer, and special-use exceptions
Subsection (g)(1)(a) protects authorized possession of the listed items by Armed Forces or National Guard members and by law-enforcement officers on duty or traveling to or from an authorized place of duty. For off-duty officers, (g)(1)(b)-(c) permits magazines holding up to 17 rounds, or more than 17 when used with an employer-issued service firearm. For hollow-nose or dum-dum bullets, (g)(2)(a) permits licensed retail or wholesale firearms dealers to possess them at licensed premises, with records of nondealer purchasers' names, ages, residences, sale dates, and quantities. Subsection (g)(2)(b) covers a designated nuclear-plant employee or licensed agent performing official protection duties when the federal licensee certifies the assignment and required training and qualifications. For armor-piercing ammunition and large-capacity magazines, (g)(3) permits licensed dealers to possess them at licensed premises for disposition to another licensed dealer, the Armed Forces, National Guard, or a law-enforcement agency; agency transactions require the specified records and a copy sent to the State Police Superintendent within 48 hours. Separately, 2C:39-17 permits up-to-15-round magazines feeding directly and continuously into a semi-automatic handgun for retired officers authorized under 2C:39-6(l). Section 2C:39-18 protects magazines used solely as film, television, or video props when reconfigured to fire blanks and kept under a federal firearms license holder's control.
A possible issue is not an automatic dismissal. Its value depends on the admissible record, the exact subsection charged, and what the State can prove beyond a reasonable doubt.
Charge Boundaries
Related, but not interchangeable
2C:39-1 definitions: Technical definitions set the State's proof.
2C:39-6 exemptions: Transport and occupational protections are condition-sensitive.
2C:39-5: Licensing-based possession differs from item-character prohibition.
Indictable crimes are ordinarily handled in Superior Court. A disorderly persons or petty disorderly persons charge is ordinarily heard in municipal court unless it travels with indictable counts or is otherwise transferred. The complaint and later charging documents control.
Practice and court resources
Common Questions
Questions about 2C:39-3
Are hollow-nose rounds always illegal?
No. Subsection (g)(2)(a) permits keeping hollow-nose or dum-dum bullets at a dwelling, premises, or other land the person owns or possesses, and carrying them from purchase to that dwelling or land. Subsection (f)(1), the dealer provisions, and specific duty provisions supply other exceptions. The armor-piercing-ammunition branch has different conditions.
Is every listed knife illegal?
Subsection (e) also requires no explainable lawful purpose.
Why does offense date matter?
P.L.2025, c.363 was approved and took effect January 20, 2026; the charged conduct must be evaluated under the law in force on its date.
Primary Sources
Read the law and current court instructions
- New Jersey Legislature lookup for N.J.S.A. 2C:39-3 (section text and amendment history).
- New Jersey Legislature bulk statutes archive.
- New Jersey Courts, current Model Criminal Jury Charges. Search the exact citation; not every offense or subsection has a model charge.
- N.J.S.A. 2C:43-3 fines and restitution and N.J.S.A. 2C:43-6 ordinary prison terms.
- P.L.2025, c.363 — effective January 20, 2026.
- Readington Township Police firearms FAQ, question 15 — October 20, 2017 Attorney General stun-gun memorandum and adult possession.
Source verification: section language and amendment history checked against the Legislature bulk text through L.2025, c.405 on September 5, 2026. Sentencing ranges were checked against N.J.S.A. 2C:43-3 and 2C:43-6 in the same snapshot. The Judiciary’s live model-charge index was checked September 5, 2026; because model charges are revised separately, its current entry should be used at the time of a case.
The citation is only the starting point.
Bring the complaint, charging language, and any release or no-contact conditions. We can discuss what this particular allegation requires and where the proof may be contested.
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Source verification completed September 5, 2026 against the New Jersey Legislature bulk statutes through P.L.2025, c.405, the exact Title 2C section, applicable sentencing statutes, and the New Jersey Judiciary’s current model-charge index. Primary sources: Legislature statute archive and Judiciary model charges and P.L.2025, c.363 — effective January 20, 2026 and Readington Township Police firearms FAQ, question 15 — October 20, 2017 Attorney General stun-gun memorandum and adult possession. This is source verification, not a representation of attorney review. Laws change; nothing here is legal advice for your specific case.