St. Louis Weapons Charges Defense Attorney

The Penalties Are Severe at Every Level

The dangerous felony designation applies to ACA and enhanced UUW (shooting offenses), meaning 85% of those sentences must be served before parole eligibility.² Combined with consecutive sentencing, a defendant charged with a Class A Felony plus ACA can face 13+ years as an absolute minimum before any possibility of release.

Weapons Charges We Defend in St. Louis

Unlawful Use of Weapon (§571.030)

UUW is Missouri’s broadest weapons statute — 10 subsections covering everything from carrying while intoxicated to discharging a firearm from a vehicle. The most commonly charged offenses in the St. Louis metro include carrying a firearm while intoxicated (subsection 2), exhibiting a weapon in a threatening manner (subsection 4), and possessing a firearm while in possession of a controlled substance (subsection 5). Each is a Class E Felony.³

The shooting offenses under subsections 7 through 10 — discharging at or from a vehicle, at an occupied building, into a dwelling, or into a crowd — carry the harshest penalties: Class B Felony with a 15-year mandatory minimum under §571.030.9.⁴

Felon in Possession / Unlawful Possession of Firearm (§571.070)

Any person convicted of a felony is prohibited from possessing a firearm under Missouri law.⁵ The base offense is a Class D Felony — up to 7 years. Prior dangerous or violent felony convictions escalate the charge to Class C (10 years) or Class B (5–15 years).⁵ Federal prosecution under 18 U.S.C. §922(g) adds a separate layer of exposure, with the Armed Career Criminal Act imposing a 15-year mandatory minimum for defendants with three or more qualifying priors.⁶

These cases frequently arise during traffic stops, probation home visits, and drug investigations. The firearm does not need to be loaded, fired, or even touched — access and knowledge are sufficient.

Armed Criminal Action (§571.015)

ACA is not a standalone crime — it is an enhancement that prosecutors attach to any felony involving a weapon. The mandatory minimum is 3 years for a first offense, 5 to 30 years for a second, and 10 years to life for a third.¹ Every ACA sentence runs consecutive to the underlying felony, and there is no probation, no parole, and no early release on the ACA portion.¹

Prosecutors in St. Louis charge ACA aggressively — it is added to drug cases, assault cases, robbery cases, and any other felony where a weapon is present. Defeating or negotiating the dismissal of an ACA enhancement is often the single most impactful outcome in a weapons case.

Carrying Concealed Weapon

Missouri’s permitless carry law allows most adults 19 and older to carry concealed firearms without a permit — but restrictions remain.⁷ Carrying while intoxicated, carrying in a prohibited location (courthouses, schools, airports, posted private property), and carrying while possessing a controlled substance are all still criminal offenses.^{3 8}

Additional Weapons Charges

Unlawful Transfer (§571.060) — Selling or giving a firearm to a prohibited person. Class D Felony.⁹

Defacing Firearm (§571.050) — Altering or removing serial numbers. Class D Felony. Possession of a defaced firearm is a separate Class E Felony.¹⁰

Illegal Discharge (§571.030/031) — Discharging near schools, at vehicles, into dwellings, or into crowds. Penalties range from Class E Felony to Class B Felony with 15-year mandatory minimum.^{3 4}

Defense Strategies for St. Louis Weapons Cases

Self-Defense and Justification

Missouri’s self-defense protections are among the strongest in the country. The castle doctrine under §563.031.2 eliminates the duty to retreat inside a dwelling, and stand-your-ground protections under §563.031.3 eliminate the duty to retreat anywhere a person is lawfully present.¹¹ When a weapons charge arises from a self-defense situation — exhibiting a weapon to deter an attacker, firing in response to an imminent threat — these statutory protections can provide a complete defense.

Second Amendment and Bruen Challenges

The U.S. Supreme Court’s 2022 decision in New York State Rifle & Pistol Association v. Bruen established a new framework for evaluating firearms restrictions under the Second Amendment.¹² Courts must now assess whether a restriction is “consistent with this Nation’s historical tradition of firearm regulation.” Defense attorneys are using this framework to mount as-applied challenges to felon-in-possession statutes — particularly for defendants whose prior convictions were nonviolent.

Suppression of the Firearm

If the weapon was discovered through an unlawful search — a traffic stop without reasonable suspicion, a frisk without articulable safety concerns, a vehicle search without probable cause or consent, a home search without a valid warrant — the firearm evidence is suppressed regardless of the underlying charge.¹³ Many weapons cases collapse entirely when the search is invalidated.

ACA Negotiation

Dismissal of the Armed Criminal Action enhancement is frequently the most valuable outcome in plea negotiations. Because ACA adds mandatory consecutive time with no probation eligibility, eliminating the enhancement can reduce total sentencing exposure by years or decades. Experienced defense counsel makes ACA dismissal a priority in every case where the enhancement is charged.

Constructive Possession

When a firearm is found in a shared location — a vehicle with multiple occupants, a common area of a residence — the State must prove that the specific defendant had knowledge of and control over the weapon. Proximity alone is not possession, and multi-occupant situations frequently create reasonable doubt.¹⁴

Rose Legal Services Handles Every Type of Weapons Case in St. Louis

Weapons charges demand defense attorneys who understand the constitutional landscape, the statutory framework, and the practical realities of how these cases are prosecuted in local courts. Our firm practices in St. Louis County (21st Circuit), St. Louis City (22nd Circuit), St. Charles County (11th Circuit), and Jefferson County (23rd Circuit). We know the prosecutors, the judges, and the strategies that produce results.

Flat-fee pricing for weapons defense. Flexible payment plans. Available around the clock.

Call Rose Legal Services 24/7 for a free consultation. The defense starts with a conversation.

References

1. §571.015, RSMo [Armed Criminal Action — mandatory minimums, consecutive, no probation].
2. §556.061(8), RSMo [Dangerous felony designation — 85% mandatory minimum].
3. §571.030.1, RSMo [Unlawful use of weapons — subsections and classifications].
4. §571.030.9, RSMo [Enhanced UUW — 15-year mandatory minimum, dangerous felony].
5. §571.070, RSMo [Unlawful possession of firearm — prohibited persons, classification escalation].
6. 18 U.S.C. §922(g); 18 U.S.C. §924(e) [Federal prohibition; Armed Career Criminal Act].
7. §571.101, RSMo [Permitless carry — persons 19+].
8. §571.107, RSMo [Prohibited locations].
9. §571.060, RSMo [Unlawful transfer of weapon].
10. §571.050, RSMo [Defacing firearm]; §571.020 [Possession of defaced firearm].
11. §563.031.2-.3, RSMo [Castle doctrine and stand-your-ground].
12. New York State Rifle & Pistol Association v. Bruen, 597 U.S. 1 (2022).
13. U.S. Const. amend. IV; Mo. Const. art. I, §15.
14. See State v. Purlee, 839 S.W.2d 584 (Mo. 1992) [Constructive possession standard].