C&R · IV · 046

Madsen Model 1949 submachine gun

Section IV: still an NFA firearm, also a curio or relic

Official wording

ATF P 5300.11 · APRIL 2025 EDITION · SECTION IV · VERBATIM · PDF P. 83 ↗

Danish, Madsen, Model 1949, submachinegun.

INFOATF states no date; production was about 1949–1953.
INFOStill an NFA firearm; only registered examples transfer, with ATF approval (26 U.S.C. 5812, 5861).

Low editorial confidence. Some details below couldn’t be confirmed from independent sources. The ATF wording is unaffected. About confidence

Official wording

ATF P 5300.11, April 2025 edition · Section IV · PDF p. 83 ↗ · ATF original ↗

Entries

1 line

Verbatim check

Checked against the PDF text before every release

Editorial facts

Confidence: Low · Last revised 18 October 2026 (Evidence pass) · How we rate confidence

References

1. Wikipedia, “Madsen M-50” ↗, maker: Madsen submachine guns made by Dansk Industri Syndikat

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

Image: Wikimedia Commons, “Submachine Guns (9885170076) (cropped).jpg” by Gary Todd from Xinzheng, China, CC0. Retrieved October 2026.

Summary: Wikipedia, “Madsen M-50”. Text CC BY-SA 4.0.

The Madsen M-50 or M/50 is a submachine gun introduced in 1950. It was produced by the Danish company Dansk Industri Syndikat of Copenhagen, Denmark.