# 115-hr-3458: MICRO Act

115-hr-3458, MICRO Act, is a 115th Congress bill sponsored by Rep. Brown, Anthony G. [D-MD-4] (D-MD); status Referred to the Subcommittee on Crime, Terrorism, Homeland Security, and Investigations. (as of 2025-11-18).

- Canonical: https://policyrisk.com/legislation/115-hr-3458
- As of: 2025-11-18
- Plain-text twin of the page above; the HTML and this file carry the same facts.

## Facts
- Bill: 115-hr-3458
- Congress: 115
- Title: MICRO Act
- Status: Referred to the Subcommittee on Crime, Terrorism, Homeland Security, and Investigations.
- Introduced: 2017-07-27
- Sponsor: Rep. Brown, Anthony G. [D-MD-4] (D-MD)
- Cosponsors: 16
- Policy area: Crime and Law Enforcement
- Touches household money: no
- Last recorded action: 2025-11-18

## Summary

Make Identifiable Criminal Rounds Obvious Act or the MICRO Act This bill amends the federal criminal code to require that certain semiautomatic pistols manufactured, imported, or sold by federal firearms licensees be capable of microstamping ammunition. A pistol is capable of microstamping if it can copy certain characters identifying the make, model, and serial number of the firearm onto the cartridge case of the ammunition. This rule only applies to semiautomatic pistols manufactured or imported into the United States after the date of enactment of this bill. The bill establishes fines for violation of the microstamping requirement. It shall also be unlawful to alter the microstamping capability of a firearm that has been transported in interstate or foreign commerce. Violators of this prohibition are subject to fines and suspension or revocation of any firearms license.

## Cosponsors (16)

- ROBERT BRADY (D-PA), 2017-07-27T00:00:00.000Z
- Rep. Cicilline, David N. [D-RI-1] (D-RI), 2017-07-27T00:00:00.000Z
- Rep. Connolly, Gerald E. [D-VA-11] (D-VA), 2017-07-27T00:00:00.000Z
- LUIS GUTIERREZ (D-IL), 2017-07-27T00:00:00.000Z
- Rep. Larson, John B. [D-CT-1] (D-CT), 2017-07-27T00:00:00.000Z
- Rep. McEachin, A. Donald [D-VA-4] (D-VA), 2017-07-27T00:00:00.000Z
- Del. Norton, Eleanor Holmes [D-DC-At Large] (D-DC), 2017-07-27T00:00:00.000Z
- Rep. Raskin, Jamie [D-MD-8] (D-MD), 2017-07-27T00:00:00.000Z
- Rep. Schakowsky, Janice D. [D-IL-9] (D-IL), 2017-07-27T00:00:00.000Z
- JOSE SERRANO (D-NY), 2017-07-27T00:00:00.000Z
- Rep. Suozzi, Thomas R. [D-NY-3] (D-NY), 2017-07-27T00:00:00.000Z
- Rep. Vargas, Juan [D-CA-52] (D-CA), 2017-07-27T00:00:00.000Z
- Rep. Napolitano, Grace F. [D-CA-31] (D-CA), 2017-09-07T00:00:00.000Z
- Rep. Meeks, Gregory W. [D-NY-5] (D-NY), 2018-02-05T00:00:00.000Z
- Rep. Hastings, Alcee L. [D-FL-20] (D-FL), 2018-06-01T00:00:00.000Z
- Rep. McNerney, Jerry [D-CA-9] (D-CA), 2018-07-13T00:00:00.000Z

## Related bills

- 115-hr-6545: Violence Against Women Reauthorization Act of 2018
- 115-hr-6135: Keep Families Together Act
- 115-hr-5087: Assault Weapons Ban of 2018
- 115-hr-4240: Public Safety and Second Amendment Rights Protection Act of 2017
- 115-hr-3947: Automatic Gunfire Prevention Act
- 115-hr-3440: Dream Act of 2017

## Sources
- [115-hr-3458 on Congress.gov](https://www.congress.gov/bill/115th-congress/house-bill/3458)

## Related
- [115-hr-6545: Violence Against Women Reauthorization Act of 2018](https://policyrisk.com/legislation/115-hr-6545)
- [115-hr-6135: Keep Families Together Act](https://policyrisk.com/legislation/115-hr-6135)
- [115-hr-5087: Assault Weapons Ban of 2018](https://policyrisk.com/legislation/115-hr-5087)
- [115-hr-4240: Public Safety and Second Amendment Rights Protection Act of 2017](https://policyrisk.com/legislation/115-hr-4240)
- [115-hr-3947: Automatic Gunfire Prevention Act](https://policyrisk.com/legislation/115-hr-3947)
- [115-hr-3440: Dream Act of 2017](https://policyrisk.com/legislation/115-hr-3440)
- [All bills in Congress](https://policyrisk.com/legislation)

Source: PRIA, https://policyrisk.com/legislation/115-hr-3458 (as of 2025-11-18).