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 · II · 277

Hammond / Hi-Standard .45 pistol

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. 9 ↗

Hammond/Hi-Standard, semiautomatic pistols, in cal. .45.

ATF lists cal. .45; this is the .45 ACP cartridge.

What this entry requires

  • INFOATF states no date; production was about 1938–1945.

Editorial facts · Our research

Country
United StatesBasis: no citation
Manufacturer
High Standard Mfg. Co.Basis: the ATF wording
Type
PistolBasis: the ATF wording
Action
Semi-autoBasis: the ATF wording
Caliber
.45 ACPBasis: the ATF wording
Made
c. 1938–1945production; ATF states no dateBasis: outside reference ¹
Service
Commercial

Source

Official wording
ATF P 5300.11, April 2025 edition · Section II · PDF p. 9 ↗ · ATF original ↗
Entries
1 line
Verbatim check
Checked against the PDF text before every release
Editorial facts
Confidence: Medium · Last revised 17 October 2026 (Data-trust review) · How we rate confidence
References
  1. 1. nramuseum.org ↗, years: in 1938 High Standard began work on a .45 ACP pistol based on a Grant Hammond design
  2. 2. forgottenweapons.com ↗, name: High Standard prototype improving on the Grant Hammond pistol, .45 ACP
  3. 3. forgottenweapons.com ↗, service: no record that this High Standard version was made for the military
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
3 changes · see below

Correction history

  1. Data-trust reviewEditorial confidence: Low → Medium. Re-rated after supporting references were added or re-checked.
  2. Data-trust reviewSearch aliases updated. Removed "t3" (the T3 is a different 9mm prototype)
  3. Data-trust reviewYears: 1945–1950 → 1938–1945. NRA Museum: High Standard began work on a .45 ACP pistol based on the Grant Hammond design in 1938

All corrections · How corrections work

Historical context

NO VERIFIED IMAGE AVAILABLEWe show only freely licensed images verified to depict this model. None has been found yet.