C&R · II · 323
Ithaca Model 37 Bicentennial
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 ↗
Ithaca, Bicentennial Model 37, pump action shotguns, S/Ns USA0001 to USA1976.
What this entry requires
- ATF REQUIRESYour firearm is this edition: “Bicentennial Model 37”
- ATF REQUIRESYour serial number is one ATF listsATF: “S/Ns USA0001 to USA1976”
- INFOATF states no date; production was about 1976.
Editorial facts · Our research
- Country
United StatesBasis: outside reference ²- Manufacturer
- Ithaca Gun Co.Basis: the ATF wording
- Type
- ShotgunBasis: the ATF wording
- Action
- OtherBasis: the ATF wording
- Caliber
- Not statedBasis: the ATF wording
- Made
- S/N USA0001–USA1976 · c. 1976production; ATF states no dateBasis: estimate ¹
- Service
- Commercial
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. Wikipedia, “Ithaca 37” ↗, years (estimate: range of the base model): infobox production date 1937–present; the Bicentennial S/Ns USA0001–USA1976 point to 1976, within it
- 2. Wikipedia, “Ithaca 37” ↗, country: infobox origin United States
- 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

Image: Wikimedia Commons, “Ithaca 37 cropped and rotated.jpg” by Dennis Yang, CC BY 2.0. Retrieved October 2026.
Summary: Wikipedia, “Ithaca 37”. Text CC BY-SA 4.0.
FROM WIKIPEDIA
The Ithaca 37, also known as the Ithaca Model 37, is a pump-action shotgun made in large numbers for the civilian, law enforcement and military markets. Based on a 1915 patent by firearms designer John Browning for a shotgun, initially marketed as the Remington Model 17, it utilizes a novel combination ejection/loading port on the bottom of the gun which leaves the sides closed to the elements.