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 · III · 016

Colt Model 1905, with holster stock

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. 23 ↗

Colt, Model 1905, pistol, cal. .45 rimless, with leather holster/shoulder stock and 5" barrel.

What this entry requires

  • ATF REQUIRESConfigured as the ATF wording states: “with leather holster/shoulder stock and 5" barrel”
  • INFOATF states no date; production was about 1905–1911.

Editorial facts · Our research

Country
United StatesBasis: no citation
Manufacturer
Colt's Patent Fire Arms Mfg. Co.Basis: the ATF wording
Type
PistolBasis: the ATF wording
Action
Semi-autoBasis: no citation
Caliber
.45 rimlessBasis: the ATF wording
Made
1905–1911production; ATF states no dateBasis: outside reference ¹
Service
Commercial

Source

Official wording
ATF P 5300.11, April 2025 edition · Section III · PDF p. 23 ↗ · 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. 1. gunvalues.gundigest.com ↗, years: Gun Digest: "total production was approximately 6,300 from 1905 to 1911"; fewer than 500 grooved for the leather/steel holster stock
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

Colt M1900 (base model shown for Colt Model 1905, with holster stock)
Shown: a Colt Model 1900, not the .45 Model 1905 with holster stock.

Image: Wikimedia Commons, “Pistol US Colt M1900 (10193185426) (cropped).jpg” by Naval History & Heritage Command from Washington, DC, USA, CC BY 2.0. Retrieved October 2026.

Summary: Wikipedia, “Colt M1900”. Text CC BY-SA 4.0.

FROM WIKIPEDIA

The Colt Model 1900 is a short-recoil operated "self-loading", or semi-automatic .38 caliber handgun introduced by Colt's Manufacturing Company at the turn of the 20th century. The M1900 was the first firearm to be chambered in .38 ACP.