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 · IV · 256

75mm Pack Howitzer M1A1, S/N 336

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. 89 ↗

U.S. Pack Howitzer, Model M1-A1, cal. 75mm, S/N 336, manufactured in 1941.

What this entry requires

  • ATF REQUIRESYour serial number is one ATF listsATF: “S/N 336”
  • ATF REQUIRESMade 1941 (ATF’s dates)ATF: “manufactured in 1941”
  • INFOStill an NFA firearm; only registered examples transfer, with ATF approval (26 U.S.C. 5812, 5861).

Editorial facts · Our research

Country
United States
Manufacturer
General Electric (Erie, PA)²³
Type
Cannon
Action
Other⁴
Caliber
75mm
Made
S/N 336, made 1941 · c. 1941¹
Service
Military
Search listings ↗Check a specific gunReport an error ↗

Source

Official wording
ATF P 5300.11, April 2025 edition · Section IV · PDF p. 89 ↗ · 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. Wikipedia, “M116 howitzer” ↗, years: production 1927–1944
  2. Wikipedia, “M116 howitzer” ↗, maker: infobox manufacturer General Electric
  3. livinghistoryregistry.com ↗, maker: Living History Registry: M1A1 gun s/n 506 made by General Electric, Erie, Pennsylvania, 1941 (record 5675: s/n 572, GE, 1941) — the 1941 M1A1 tubes recorded are GE-made; S/N 336 itself not recorded
  4. Wikipedia, “M116 howitzer” ↗, action: breech-loading pack howitzer with horizontal-block breech (recorded as Other)
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

  1. Evidence passMaker: U.S. Government arsenals → General Electric (Erie, PA). The M116 article names General Electric and registry records show 1941 M1A1 tubes made by GE at Erie
  2. Data-trust reviewYears shown as: Listed serial only → S/N 336, made 1941. ATF states "manufactured in 1941"

All corrections · How corrections work

Historical context

75mm Pack Howitzer M1A1, S/N 336

Image: Wikimedia Commons, “Two M116 75mm Howitzers in Chengkungling 20111009.jpg” by 玄史生, CC BY-SA 3.0. Retrieved October 2026.

Summary: Wikipedia, “M116 howitzer”. Text CC BY-SA 4.0.

FROM WIKIPEDIA

The 75mm pack howitzer M1 was a pack howitzer designed in the United States. The gun saw combat in World War II with the United States Army and the United States Marine Corps, and was also supplied to foreign militaries. Initially designed to be moved across difficult terrain, the gun and carriage could be broken down into several pieces to be carried by pack animals, and this ability as well as its compact size allowed it to be used by paratroop and glider forces.