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 · 603

Winchester Model 37

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. 20 ↗

Winchester, Model 37, single barrel shotguns, all gauges, manufactured between 1936 and 1963.

What this entry requires

  • ATF REQUIRESMade 1936–1963 (ATF’s dates)ATF: “manufactured between 1936 and 1963”

Editorial facts · Our research

Country
United StatesBasis: outside reference ¹
Manufacturer
Winchester Repeating Arms Co.Basis: the ATF wording
Type
ShotgunBasis: the ATF wording
Action
OtherBasis: outside reference ²
Caliber
All gaugesBasis: the ATF wording
Made
1936–1963Basis: the ATF wording
Service
Commercial

Source

Official wording
ATF P 5300.11, April 2025 edition · Section II · PDF p. 20 ↗ · ATF original ↗
Entries
1 line
Verbatim check
Checked against the PDF text before every release
Editorial facts
Confidence: High · Last revised 18 October 2026 (Evidence pass) · How we rate confidence
References
  1. 1. Wikipedia, “Winchester Model 37” ↗, country: infobox origin United States
  2. 2. Wikipedia, “Winchester Model 37” ↗, action: infobox action break-action
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

Winchester Model 37

Image: Wikimedia Commons, “Model 37.jpg” by Gurpreetsihota, CC BY-SA 3.0. Retrieved October 2026.

Summary: Wikipedia, “Winchester Model 37”. Text CC BY-SA 4.0.

FROM WIKIPEDIA

The Winchester Model 37 (M37) Single Shot Shotgun is an American firearm. It was in production from 1936 to 1963, with 1,015,554 units made. This model was developed by Winchester with a standard visible hammer action for many years. The Winchester Model 37 uses a top-cocking lever, breakdown type of action with an automatic shell ejector. The first M37 shotguns were delivered on February 10, 1936, according to factory records. M37 shotguns were not serial numbered.