Source: ATF P 5300.11 · Curios or Relics List · Jan 1972 – Apr 20253,573 entries · 4 sections
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C&R · II · 540

Steyr-Hahn M1912, police-accepted 9mm conversion

Section II: curio or relic, still subject to the Gun Control Act

Official wording

ATF P 5300.11 · APRIL 2025 EDITION · SECTION II · VERBATIM · PDF P. 17 ↗

Steyr-Hahn, M1912, pistol, cal. 9mm Parabellum, marked with Third Reich police acceptance stamps of Eagle C, F, K, or L.

What this entry requires

  • ATF REQUIRESYour firearm carries the marking “marked with Third Reich police acceptance stamps of Eagle C”
  • INFOATF states no date; production was about 1912–1945.

Editorial facts · Our research

Country
Austria (Austria-Hungary)³
Manufacturer
Österreichische Waffenfabriks-Gesellschaft, Steyr²
Type
Pistol
Action
Semi-auto⁴
Caliber
9mm Parabellum
Made
c. 1912–1945production; ATF states no date⁵
Service
Military
Search listings ↗Check a specific gunReport an error ↗

Source

Official wording
ATF P 5300.11, April 2025 edition · Section II · PDF p. 17 ↗ · ATF original ↗
Entries
1 line
Verbatim check
Checked against the PDF text before every release
Editorial facts
Confidence: Medium · Last revised 18 October 2026 (Evidence pass) · How we rate confidence
References
  1. Wikipedia, “Steyr M1912 pistol” ↗, general: after the 1938 Anschluss the German Police had 60,000 M1912s rechambered to 9mm Parabellum (P12(ö)), marked with an eagle and '08'
  2. Wikipedia, “Steyr M1912 pistol” ↗, maker: developed and made by Œ.W.G., Steyr; Austro-Hungarian Army pistol from 1912
  3. Wikipedia, “Steyr M1912 pistol” ↗, country: variant section 9mm P12(ö): Austrian M1912 pistols (infobox origin Austria-Hungary) rechambered after the 1938 Anschluss
  4. Wikipedia, “Steyr M1912 pistol” ↗, action: variant section 9mm P12(ö): the same M1912 pistols rechambered, recoil-operated semi-automatic (infobox)
  5. Wikipedia, “Steyr M1912 pistol” ↗, years (estimate: partly supports it): pistols made 1912–1920; German Police ordered 60,000 rechambered to 9mm Parabellum after the 1938 Anschluss, in service to the end of WWII; end 1945 is our estimate
Fact tags
  • ATF the ATF wording states it.
  • REF ¹ an outside reference supports it; the number points to the list of references.
  • ESTIMATE an approximate or indirect reading, for example the production range of the base model.
  • NO CITATION we haven’t attached a reference for this fact; it’s our editorial reading, not ATF’s.
Source checked
20 October 2026: ATF’s page still lists the April 2025 edition
Corrections
3 changes · see below

Correction history

  1. Evidence passEditorial confidence: High → Medium. Re-rated after its references were re-checked and some details couldn't be confirmed.
  2. Data-trust reviewEditorial confidence: Medium → High. Re-rated after supporting references were added or re-checked.
  3. Data-trust reviewYears shown as: Converted 1938–1945 → Not stated. 'Converted 1938–1945' read as an ATF date limit; ATF states none

All corrections · How corrections work

Historical context

Steyr M1912 pistol (base model shown for Steyr-Hahn M1912, police-accepted 9mm conversion)
Shown: a Steyr-Hahn M1912 in 9mm Steyr, not this police-marked 9mm Parabellum conversion.

Image: Wikimedia Commons, “Steyr-Hahn M1912.JPG” by Drake00, CC BY-SA 3.0. Retrieved October 2026.

Summary: Wikipedia, “Steyr M1912 pistol”. Text CC BY-SA 4.0.

FROM WIKIPEDIA

The Steyr M1912, also known as the Steyr-Hahn, is an Austro-Hungarian semi-automatic pistol developed by Österreichische Waffenfabriks-Gesellschaft (Œ.W.G.) and adopted by the Austro-Hungarian Army in 1912. The pistol was developed in the years preceding its adoption and became one of the principal Austro-Hungarian military pistols of World War I.