Stop Arming Cartels Act of 2025
Congress targets .50 caliber rifles with ban, registration rule for current owners, and limits tied to drug kingpins
Stalled
No legislative action in over 90 days.
Legislative Progress
Key Points
- Would ban most people from importing, making, selling, transferring, or owning rifles that can fire .50 caliber ammo after the law takes effect.
- People who already legally own a .50 caliber rifle before the law starts could keep it, but it would be treated like a heavily regulated firearm.
- Current owners would have a 12-month window to register their .50 caliber rifle with the federal registry, with no registration fee or tax.
- Gun makers and sellers could face lawsuits if they knowingly sell or transfer guns in illegal deals tied to major foreign drug trafficking bans.
- Would expand background-check-related blocks and sales rules to help stop firearms from being sold to foreign drug kingpins and certain designated foreign persons.
Impact Analysis
Personal Impact
How this policy affects specific groups of people
Milestones
Read twice and referred to the Committee on Finance. (text: CR S546)
Sent to a congressional committee for expert review. The committee decides whether this bill moves forward.
Introduced in Senate
The bill was officially filed and given a number. It now enters the legislative queue.
Votes
No votes have been recorded for this legislation yet.
Related News
4 articles
San Antonio Rep. Castro files bill aimed to curb flow of high-caliber U.S. weapons into Mexico
Covers introduction of the Stop Arming Cartels Act, including the proposed prohibition on nongovernmental .50 caliber rifles, NFA-style regulation of existing rifles, and dealer reporting requirements.

Reps. Castro, Escobar, Frost, and Senator Durbin Introduce Stop Arming Cartels Act
Announcement describing the bill’s main provisions: banning future nongovernmental .50 caliber rifles, NFA registry treatment for existing rifles with a 12-month registration window, and changes tied to Kingpin Act-related transactions.

Durbin, Castro Introduce Bill To Curb Firearms Trafficking From The United States To Mexican Drug Cartels
Explains the Stop Arming Cartels Act provisions: ban on future .50 caliber rifles, NFA-style regulation of existing rifles with a 12-month grace period, PLCAA exception tied to Kingpin Act violations, and NICS-related changes.
Source Information
Document Type
Congressional Bill
Official Title
Stop Arming Cartels Act of 2025
Data Sources
Sponsor
Cosponsors
(16)Analysis generated by AI. Always verify with official sources.