Source: ATF P 5300.11 · Curios or Relics List · Jan 1972 – Apr 20253,573 entries · 4 sections
The C&R RegisterA finding aid to the ATF Curios or Relics List, for Type 03 collectors
C&R · II · 339

Husqvarna m/40 (Swedish Lahti)

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. 11 ↗

Lahti Swedish Model M40 pistols, cal. 9mm, all variations, mfd. prior to 1968.

ATF lists cal. 9mm; this is the 9mm Parabellum (9×19mm) cartridge.

What this entry requires

  • ATF REQUIRESMade 1967 or earlier (ATF’s dates)ATF: “mfd. prior to 1968”

Editorial facts · Our research

Country
SwedenBasis: outside reference ²
Manufacturer
Husqvarna VapenfabrikBasis: the ATF wording
Type
PistolBasis: the ATF wording
Action
Semi-autoBasis: outside reference ³
Caliber
9mm ParabellumBasis: the ATF wording
Made
Before 1968Basis: outside reference ¹
Service
Military

Source

Official wording
ATF P 5300.11, April 2025 edition · Section II · PDF p. 11 ↗ · 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. 1. Wikipedia, “Lahti L-35” ↗, years: variant section 'Lahti Husqvarna m/40': manufactured 1940 to 1946; ATF limits the entry at prior to 1968
  2. 2. Wikipedia, “Lahti L-35” ↗, country: variant section: Swedish copy of the Finnish Lahti, made by Husqvarna Vapenfabriks
  3. 3. Wikipedia, “Lahti L-35” ↗, action: variant section: same design and firing mechanism as the semi-automatic L-35
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
None

Historical context

Lahti L-35 (base model shown for Husqvarna m/40 (Swedish Lahti))
Shown: a Finnish Lahti L-35, not the Swedish Husqvarna m/40.

Image: Wikimedia Commons, “Lahti L-35-1.jpg” by M62, CC BY-SA 3.0. Retrieved October 2026.

Summary: Wikipedia, “Lahti L-35”. Text CC BY-SA 4.0.

FROM WIKIPEDIA

The Lahti L-35 is a semi-automatic pistol designed by Aimo Lahti that was produced between 1935 and 1952. Designed to be manufactured autonomously in Finland, the pistol was used by Finland throughout the Winter War and Continuation War. Considered to be of high quality, the Lahti was well manufactured and worked reliably in cold conditions or when fouled. The use of a bolt accelerator, an uncommon feature in a pistol, helped make the Lahti reliable.