C&R · II · 518
S&W Model 66, Naval Investigative Service
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 ↗
Smith & Wesson, Model 66, "Naval Investigative Service Commemorative", cal. .357, 6-shot revolvers.
What this entry requires
- ATF REQUIRESYour firearm is this edition: “"Naval Investigative Service Commemorative"”
- INFOATF states no date; production was about 1988.
Editorial facts · Our research
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: High · Last revised 18 October 2026 (Evidence pass) · How we rate confidence
- References
- 1. collectorsfirearms.com ↗, years: Collectors Firearms (via store API): SN AZB2761, "Made in 1988", S&W Naval Investigative Service Special Edition revolver (66-2), .357 Magnum, with presentation case
- 2. Wikipedia, “Smith & Wesson Model 19” ↗, years (estimate: range of the base model): "The Model 66 was produced from 1970 until 2005"
- 3. collectorsfirearms.com ↗, action
- 4. Wikipedia, “Smith & Wesson Model 19” ↗, country: infobox origin United States, manufacturer Smith & Wesson; the article covers the Model 66 that ATF names
- 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
- 2 changes · see below
Correction history
- Evidence passEditorial confidence: Low → High. Re-rated after supporting references were added or re-checked.
- Evidence passYears: 1970–1992 → 1988
Historical context

Image: Wikimedia Commons, “Smith Model 19 .357 Magnum.jpg” by Michael E. Cumpston, CC BY-SA 3.0. Retrieved October 2026.
Summary: Wikipedia, “Smith & Wesson Model 19”. Text CC BY-SA 4.0.
FROM WIKIPEDIA
The Smith & Wesson Model 19 is a revolver produced by Smith & Wesson that was introduced in 1957 on its K-frame. The Model 19 is chambered for .357 Magnum. The K-frame is somewhat smaller and lighter than the original N-frame .357, usually known as the Smith & Wesson Model 27. A stainless steel variant of the Model 19, the Smith & Wesson Model 66, was introduced in 1971.
