Section 924(c) Firearms Sentencing: The Mandatory Minimum That Stacks — and Why It Matters

No sentencing statute in the federal system produces more extreme results than 18 U.S.C. § 924(c) — the mandatory consecutive sentence for using or carrying a firearm during and in relation to a crime of violence or drug trafficking crime. A single count adds a mandatory 7 years consecutive to any other sentence. A second count — even one charged in the same indictment and resolved in the same proceeding — adds a mandatory 25 years consecutive. This Journal entry explains how § 924(c) operates, which offenses qualify as predicates, and the defenses that can reduce or eliminate the exposure.

The statute — three tiers. Section 924(c)(1)(A) establishes three sentencing tiers: (i) 5 years mandatory minimum for possessing a firearm in furtherance of a qualifying offense, (ii) 7 years for brandishing the firearm, and (iii) 10 years for discharging the firearm. The sentence runs consecutively to any other sentence, including sentences for the underlying offense and sentences for other § 924(c) counts. A defendant convicted of one drug trafficking count and two § 924(c) counts — one for brandishing (7 years) and one for discharging (10 years) — faces 17 mandatory consecutive years on top of the drug trafficking sentence. There is no parole, no good-time credit exceeding 54 days per year, and no safety valve for § 924(c).

"Crime of violence" after Davis. A § 924(c) charge requires a predicate "crime of violence" or drug trafficking crime. The definition of "crime of violence" under § 924(c)(3)(A) — the elements clause — covers any felony that has as an element the use, attempted use, or threatened use of physical force against the person or property of another. The residual clause, § 924(c)(3)(B), was struck down as unconstitutionally vague in United States v. Davis, 139 S. Ct. 2319 (2019). Post-Davis, whether a particular offense qualifies as a crime of violence depends solely on the elements clause. Hobbs Act robbery qualifies. Conspiracy to commit Hobbs Act robbery does not. United States v. Taylor, 142 S. Ct. 2015 (2022). Attempted Hobbs Act robbery does not. United States v. Taylor again. This distinction is the single most important defense issue in § 924(c) litigation.

The stacking rule — First Step Act reform. Before the First Step Act of 2018, § 924(c) stacking applied even when the defendant had no prior § 924(c) conviction. A first-time offender convicted of three § 924(c) counts in a single indictment faced 5 + 25 + 25 = 55 mandatory consecutive years. The First Step Act amended § 924(c)(1)(C) so that the 25-year enhancement applies only to violations that occur after a prior § 924(c) conviction has become final. The change was not retroactive. As of 2026, approximately two thousand prisoners are still serving pre-First Step Act stacked § 924(c) sentences with no mechanism for resentencing.

Charging leverage. The § 924(c) charge is the government's most powerful leverage tool. The threat of a mandatory consecutive 7 years — and the possibility of a second count adding 25 more — routinely produces guilty pleas even in cases with substantial Fourth Amendment or sufficiency-of-the-evidence defenses. A defendant who believes the government's search was unconstitutional may rationally choose a plea agreement that dismisses the § 924(c) count rather than risk a 32-year sentencing floor at trial. Defense counsel must evaluate the § 924(c) exposure at the outset of the case — it is the single number that determines whether the defendant can realistically go to trial.

Sentencing advocacy. Even when a § 924(c) conviction is unavoidable, sentencing advocacy matters. The mandatory minimum is just that — a minimum. The government frequently requests a sentence above the mandatory minimum, citing the nature of the underlying offense and the defendant's role. Defense counsel should present the § 924(c) sentence as the full punishment the statute contemplates — and argue that any additional time for the underlying offense should run concurrently, not consecutively, in recognition of the already-imposed consecutive term.