C&R · III · 156
U.S. Mark II signal pistol
Section III: removed from the NFA, curio or relic under the GCA
Official wording
ATF P 5300.11 · APRIL 2025 EDITION · SECTION III · VERBATIM · PDF P. 45 ↗
U.S. Mark II, cal. 10 gauge, signal pistols.
What this entry requires
- INFOATF states no date; production was about 1917–1945.
Editorial facts · Our research
Low editorial confidence. Some details below couldn’t be confirmed from independent sources. The ATF wording is unaffected. About confidence
- Country
United StatesBasis: the ATF wording - Manufacturer
- Various U.S. contractorsBasis: the ATF wording
- Type
- PistolBasis: the ATF wording
- Action
- OtherBasis: no citation
- Caliber
- 10 gaugeBasis: the ATF wording
- Made
- c. 1917–1945production; ATF states no dateBasis: no citation
- Service
- Military
Source
- Official wording
- ATF P 5300.11, April 2025 edition · Section III · PDF p. 45 ↗ · 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
- None attached yet
- 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, “Webley & Scott Mk III flare pistol.jpg” by Andy Dingley, CC BY-SA 3.0. Retrieved October 2026.
Summary: Wikipedia, “Flare gun”. Text CC BY-SA 4.0.
FROM WIKIPEDIA
A flare gun, also known as a Very pistol (sometimes spelled Verey) or signal pistol, is a large-bore handgun that discharges flares, blanks and smoke. Today, a flare gun is typically used to produce a distress signal.