October Term 2024 · Docket 23-852
Does a firearm kit count as a weapon before assembly?
The dispute centers on whether unfinished firearm kits qualify as weapons under federal law.
Verified source milestones
- — An official oral-argument transcript was verified.
- — An official oral-argument transcript was verified.
- — An official Court opinion was verified.
The arguments, in order
This case may have been argued more than once. Each entry below uses that session's official transcript. Later arguments do not erase earlier ones.
Argument 1 ·
What happened at the argument
General Prelogar argued the Gun Control Act imposes essential requirements.
She stated sellers must mark products and maintain records.
Mr. Patterson argued Congress altered the common understanding of firearms.
He stated kits that readily convert to firearms are included.
Read the official transcript for this argument · Official argument details
Sources used for this argument breakdown
- Official Supreme Court Transcript — file page 10, lines 13-37 — Transcript, file page 10, lines 13-37
- Official Supreme Court Transcript — file page 11, lines 33-49 — Transcript, file page 11, lines 33-49
- Official Supreme Court Transcript — file page 12, lines 19-19 — Transcript, file page 12, lines 19-19
- Official Supreme Court Transcript — file page 12, lines 25-35 — Transcript, file page 12, lines 25-35
- Official Supreme Court Transcript — file page 13, lines 43-45 — Transcript, file page 13, lines 43-45
- Official Supreme Court Transcript — file page 13, lines 49-51 — Transcript, file page 13, lines 49-51
- Official Supreme Court Transcript — file page 14, lines 31-35 — Transcript, file page 14, lines 31-35
- Official Supreme Court Transcript — file page 15, lines 17-25 — Transcript, file page 15, lines 17-25
- Official Supreme Court Transcript — file page 4, lines 11-21 — Transcript, file page 4, lines 11-21
- Official Supreme Court Transcript — file page 4, lines 23-33 — Transcript, file page 4, lines 23-33
- Official Supreme Court Transcript — file page 58, lines 35-13 — Transcript, file page 58, lines 35-13
- Official Supreme Court Transcript — file page 6, lines 35-37 — Transcript, file page 6, lines 35-37
- Official Supreme Court Transcript — file page 6, lines 47-49 — Transcript, file page 6, lines 47-49
- Official Supreme Court Transcript — file page 67, lines 11-23 — Transcript, file page 67, lines 11-23
- Official Supreme Court Transcript — file page 67, lines 29-33 — Transcript, file page 67, lines 29-33
- Official Supreme Court Transcript — file page 67, lines 47-51 — Transcript, file page 67, lines 47-51
- Official Supreme Court Transcript — file page 69, lines 25-27 — Transcript, file page 69, lines 25-27
- Official Supreme Court Transcript — file page 69, lines 35-41 — Transcript, file page 69, lines 35-41
- Official Supreme Court Transcript — file page 69, lines 7-11 — Transcript, file page 69, lines 7-11
- Official Supreme Court Transcript — file page 7, lines 23-33 — Transcript, file page 7, lines 23-33
- Official Supreme Court Transcript — file page 70, lines 33-45 — Transcript, file page 70, lines 33-45
- Official Supreme Court Transcript — file page 71, lines 27-29 — Transcript, file page 71, lines 27-29
- Official Supreme Court Transcript — file page 71, lines 41-45 — Transcript, file page 71, lines 41-45
- Official Supreme Court Transcript — file page 72, lines 45-49 — Transcript, file page 72, lines 45-49
- Official Supreme Court Transcript — file page 72, lines 53-15 — Transcript, file page 72, lines 53-15
- Official Supreme Court Transcript — file page 73, lines 21-21 — Transcript, file page 73, lines 21-21
- Official Supreme Court Transcript — file page 73, lines 45-15 — Transcript, file page 73, lines 45-15
- Official Supreme Court Transcript — file page 86, lines 47-27 — Transcript, file page 86, lines 47-27
- Official Supreme Court Transcript — file page 9, lines 9-27 — Transcript, file page 9, lines 9-27
- Official Supreme Court Transcript — file page 92, lines 29-33 — Transcript, file page 92, lines 29-33
A citizen's guide to the whole case
What this case is about
The government argues kits are weapons. The challenger argues they are not.
Official sources for this section
- Official Supreme Court Transcript — file page 4, lines 23-33 — Transcript, file page 4, lines 23-33
- Official Supreme Court Transcript — file page 58, lines 35-13 — Transcript, file page 58, lines 35-13
- Official Supreme Court Transcript — file page 67, lines 11-23 — Transcript, file page 67, lines 11-23
- Official Supreme Court Transcript — file page 86, lines 47-27 — Transcript, file page 86, lines 47-27
How the case got here
The Supreme Court heard oral argument in this case on October 8, 2024.
Official sources for this section
- Official Supreme Court Transcript — file page 4, lines 11-21 — Transcript, file page 4, lines 11-21
- Official Supreme Court Transcript — file page 92, lines 29-33 — Transcript, file page 92, lines 29-33
What each side wants
The government wants the Court to classify kits as weapons.
The challenger wants the Court to classify kits as non-weapons.
Official sources for this section
- Official Supreme Court Transcript — file page 4, lines 23-33 — Transcript, file page 4, lines 23-33
- Official Supreme Court Transcript — file page 58, lines 35-13 — Transcript, file page 58, lines 35-13
- Official Supreme Court Transcript — file page 67, lines 11-23 — Transcript, file page 67, lines 11-23
- Official Supreme Court Transcript — file page 86, lines 47-27 — Transcript, file page 86, lines 47-27
What each side says
The government claims kits are readily convertible to firearms.
The challenger claims kits require significant work to function.
Official sources for this section
- Official Supreme Court Transcript — file page 4, lines 23-33 — Transcript, file page 4, lines 23-33
- Official Supreme Court Transcript — file page 58, lines 35-13 — Transcript, file page 58, lines 35-13
- Official Supreme Court Transcript — file page 67, lines 11-23 — Transcript, file page 67, lines 11-23
- Official Supreme Court Transcript — file page 86, lines 47-27 — Transcript, file page 86, lines 47-27
What the justices asked
Justice Thomas asked about the history of firearm regulation.
Justice Alito asked for the definition of a weapon.
Official sources for this section
- Official Supreme Court Transcript — file page 10, lines 13-37 — Transcript, file page 10, lines 13-37
- Official Supreme Court Transcript — file page 11, lines 33-49 — Transcript, file page 11, lines 33-49
- Official Supreme Court Transcript — file page 12, lines 19-19 — Transcript, file page 12, lines 19-19
- Official Supreme Court Transcript — file page 12, lines 25-35 — Transcript, file page 12, lines 25-35
- Official Supreme Court Transcript — file page 13, lines 43-45 — Transcript, file page 13, lines 43-45
- Official Supreme Court Transcript — file page 13, lines 49-51 — Transcript, file page 13, lines 49-51
- Official Supreme Court Transcript — file page 14, lines 31-35 — Transcript, file page 14, lines 31-35
- Official Supreme Court Transcript — file page 15, lines 17-25 — Transcript, file page 15, lines 17-25
- Official Supreme Court Transcript — file page 6, lines 35-37 — Transcript, file page 6, lines 35-37
- Official Supreme Court Transcript — file page 6, lines 47-49 — Transcript, file page 6, lines 47-49
- Official Supreme Court Transcript — file page 67, lines 29-33 — Transcript, file page 67, lines 29-33
- Official Supreme Court Transcript — file page 67, lines 47-51 — Transcript, file page 67, lines 47-51
- Official Supreme Court Transcript — file page 69, lines 25-27 — Transcript, file page 69, lines 25-27
- Official Supreme Court Transcript — file page 69, lines 35-41 — Transcript, file page 69, lines 35-41
- Official Supreme Court Transcript — file page 69, lines 7-11 — Transcript, file page 69, lines 7-11
- Official Supreme Court Transcript — file page 7, lines 23-33 — Transcript, file page 7, lines 23-33
- Official Supreme Court Transcript — file page 70, lines 33-45 — Transcript, file page 70, lines 33-45
- Official Supreme Court Transcript — file page 71, lines 27-29 — Transcript, file page 71, lines 27-29
- Official Supreme Court Transcript — file page 71, lines 41-45 — Transcript, file page 71, lines 41-45
- Official Supreme Court Transcript — file page 72, lines 45-49 — Transcript, file page 72, lines 45-49
- Official Supreme Court Transcript — file page 72, lines 53-15 — Transcript, file page 72, lines 53-15
- Official Supreme Court Transcript — file page 73, lines 21-21 — Transcript, file page 73, lines 21-21
- Official Supreme Court Transcript — file page 73, lines 45-15 — Transcript, file page 73, lines 45-15
- Official Supreme Court Transcript — file page 9, lines 9-27 — Transcript, file page 9, lines 9-27
Why it matters
This case defines the scope of federal firearm regulations. It determines which items require serial numbers and background checks. It impacts the sale of firearm components nationwide.
Official sources for this section
- Official Supreme Court Transcript — file page 4, lines 23-33 — Transcript, file page 4, lines 23-33
- Official Supreme Court Transcript — file page 58, lines 35-13 — Transcript, file page 58, lines 35-13
- Official Supreme Court Transcript — file page 67, lines 11-23 — Transcript, file page 67, lines 11-23
- Official Supreme Court Transcript — file page 86, lines 47-27 — Transcript, file page 86, lines 47-27
What happens next
This article currently covers the argument record. Use the official docket link for later case activity.
Official sources for this section
- Official Supreme Court Transcript — file page 10, lines 13-37 — Transcript, file page 10, lines 13-37
- Official Supreme Court Transcript — file page 11, lines 33-49 — Transcript, file page 11, lines 33-49
- Official Supreme Court Transcript — file page 12, lines 19-19 — Transcript, file page 12, lines 19-19
- Official Supreme Court Transcript — file page 12, lines 25-35 — Transcript, file page 12, lines 25-35
- Official Supreme Court Transcript — file page 13, lines 43-45 — Transcript, file page 13, lines 43-45
- Official Supreme Court Transcript — file page 13, lines 49-51 — Transcript, file page 13, lines 49-51
- Official Supreme Court Transcript — file page 14, lines 31-35 — Transcript, file page 14, lines 31-35
- Official Supreme Court Transcript — file page 15, lines 17-25 — Transcript, file page 15, lines 17-25
- Official Supreme Court Transcript — file page 4, lines 11-21 — Transcript, file page 4, lines 11-21
- Official Supreme Court Transcript — file page 6, lines 35-37 — Transcript, file page 6, lines 35-37
- Official Supreme Court Transcript — file page 6, lines 47-49 — Transcript, file page 6, lines 47-49
- Official Supreme Court Transcript — file page 67, lines 29-33 — Transcript, file page 67, lines 29-33
- Official Supreme Court Transcript — file page 67, lines 47-51 — Transcript, file page 67, lines 47-51
- Official Supreme Court Transcript — file page 69, lines 25-27 — Transcript, file page 69, lines 25-27
- Official Supreme Court Transcript — file page 69, lines 35-41 — Transcript, file page 69, lines 35-41
- Official Supreme Court Transcript — file page 69, lines 7-11 — Transcript, file page 69, lines 7-11
- Official Supreme Court Transcript — file page 7, lines 23-33 — Transcript, file page 7, lines 23-33
- Official Supreme Court Transcript — file page 70, lines 33-45 — Transcript, file page 70, lines 33-45
- Official Supreme Court Transcript — file page 71, lines 27-29 — Transcript, file page 71, lines 27-29
- Official Supreme Court Transcript — file page 71, lines 41-45 — Transcript, file page 71, lines 41-45
- Official Supreme Court Transcript — file page 72, lines 45-49 — Transcript, file page 72, lines 45-49
- Official Supreme Court Transcript — file page 72, lines 53-15 — Transcript, file page 72, lines 53-15
- Official Supreme Court Transcript — file page 73, lines 21-21 — Transcript, file page 73, lines 21-21
- Official Supreme Court Transcript — file page 73, lines 45-15 — Transcript, file page 73, lines 45-15
- Official Supreme Court Transcript — file page 9, lines 9-27 — Transcript, file page 9, lines 9-27
- Official Supreme Court Transcript — file page 92, lines 29-33 — Transcript, file page 92, lines 29-33
Official Court provenance
Official docket and case history · Official Supreme Court oral-argument detail page
Verified official opinions and orders
Title and summary sources
- Official Supreme Court Transcript — file page 4, lines 23-33 — Transcript, file page 4, lines 23-33
- Official Supreme Court Transcript — file page 58, lines 35-13 — Transcript, file page 58, lines 35-13
- Official Supreme Court Transcript — file page 67, lines 11-23 — Transcript, file page 67, lines 11-23
- Official Supreme Court Transcript — file page 86, lines 47-27 — Transcript, file page 86, lines 47-27
- Official Supreme Court Transcript — file page 4, lines 23-33 — Transcript, file page 4, lines 23-33
- Official Supreme Court Transcript — file page 58, lines 35-13 — Transcript, file page 58, lines 35-13
- Official Supreme Court Transcript — file page 67, lines 11-23 — Transcript, file page 67, lines 11-23
- Official Supreme Court Transcript — file page 86, lines 47-27 — Transcript, file page 86, lines 47-27
Revision history
- Revision 1 · Post Opinion ·
Correction: Rewritten to the concise citizen-facing editorial standard.
- Revision 2 · Post Opinion ·
Correction: Migrated to the dated official Court activity contract without model use.