Federal Firearms Sentencing: What You Need
A Glock 19 with an obliterated serial number carries a mandatory 5-year federal prison sentence—even if never fired. That’s just one example of how firearm sentencing guidelines hit harder than many realize. Here’s the breakdown every gun owner should understand.
Mandatory Minimums: The 5/10/30 Framework
Federal law imposes strict mandatory minimums for firearms offenses under 18 U.S.C. § 924(c):
- 5 years for basic possession during a crime
- 7 years for brandishing (showing the firearm)
- 10 years for discharging
- 30 years for machine guns or destructive devices
These stack consecutively with other charges. A bank robber who fires a Smith & Wesson M&P15 could face 10+ years just for the gun enhancement.
The Armed Career Criminal Act (ACCA)
Three prior violent felony convictions trigger a 15-year mandatory minimum under ACCA. “Violent felony” includes burglary—a surprise to many. Recent Supreme Court cases (Borden v. United States, 2021) narrowed definitions, but prosecutors still aggressively apply ACCA.
State vs. Federal Charges
State penalties vary wildly. Texas might give probation for a first-time unlawful carry, while New York mandates 3.5 years for an unloaded pistol in a vehicle. Federal charges typically involve:
- Interstate transactions (even between neighboring states)
- Straw purchases (buying for prohibited persons)
- NFA violations (unregistered suppressors/SBRs)
Recent Changes Under USSG §2K2.1
The 2023 sentencing guidelines increased penalties for:
- Trafficking (selling 3+ guns now adds 4 levels)
- Modified firearms (+2 levels for auto-sears or Glock switches)
- Possession with body armor (+4 levels)
Example: A Palmetto State Armory lower receiver sold to an out-of-state friend now risks 24-30 months under the trafficking enhancement.
Does a first-time gun charge mean probation?
Rarely in federal cases. Even simple possession by a prohibited person (felon, drug user) typically draws 18-24 months. State courts sometimes offer diversion programs for non-violent first offenses.
How do plea deals affect gun sentences?
Prosecutors often drop §924(c) enhancements in exchange for guilty pleas on lesser charges. But “safety valve” relief (avoiding mandatory minimums) isn’t available for most firearm offenses.
Are antique guns treated differently?
Yes—pre-1898 firearms and replicas aren’t “firearms” under federal law. But state laws vary; some still regulate antiques as modern weapons.
Browse our firearms collection
Last updated: April 28, 2026

