C&R · IV · 159
Type 100 twin aircraft machinegun
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. 86 ↗
Japanese, Type 100 (1940), aircraft flexible machinegun, cal. 7.92mm, twin barrel type.
What this entry requires
- INFOATF states no date; production was about 1940–1945.
- INFOStill an NFA firearm; only registered examples transfer, with ATF approval (26 U.S.C. 5812, 5861).
Editorial facts · Our research
Source
- Official wording
- ATF P 5300.11, April 2025 edition · Section IV · PDF p. 86 ↗ · 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, “一式旋回機関銃” ↗, maker: infobox 設計・製造: 名古屋陸軍造兵廠 (Nagoya Army Arsenal); first produced as the Type 100 (一〇〇式旋回機関銃), later adopted with a stock as the Type 1
- 2. Wikipedia, “一式旋回機関銃” ↗, years (estimate: partly supports it): infobox 製造期間 1941年～ (production from 1941, no end); text says it was first produced as the Type 100; ATF dates the Type 100 to 1940; end is our estimate
- 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
- 1 change · see below
Correction history
- Evidence passMaker: Imperial Japanese Army arsenals → Nagoya Army Arsenal. Japanese Wikipedia (the en article names no maker) gives Nagoya Army Arsenal
Historical context
Image: Wikimedia Commons, “Type 100 machine gun.jpg” by Unknown authors. From a US Department of Defense catalog of enemy ordnance materials of World War II., Public domain. Retrieved October 2026.
Summary: Wikipedia, “Type 100 machine gun”. Text CC BY-SA 4.0.
FROM WIKIPEDIA
The Type 100 is a double barrel machine gun of Japanese origin. The weapon is gas operated and fed from an overhead magazine. An example can be seen at the Satria Mandala Museum in Jakarta.