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 · 172

Colt Government Model, Wisconsin State Patrol 45th

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. 7 ↗

Colt, Model Wisconsin State Patrol, 45th Anniversary, Special Edition Commemorative, 70 series, cal. .45 government model pistols consecutively numbered 1 through 126.

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

What this entry requires

  • ATF REQUIRESYour firearm is this edition: “45th Anniversary”
  • ATF REQUIRESYour firearm is this edition: “Special Edition Commemorative”
  • ATF REQUIRESYour serial number is one ATF lists
  • INFOATF states no date; production was about 1983–1984.

Editorial facts · Our research

Country
United States³
Manufacturer
Colt's Firearms
Type
Pistol
Action
Semi-auto
Caliber
.45 ACP
Made
S/Ns 1–126 · c. 1983–1984production; ATF states no date¹²
Service
Commercial
Search listings ↗Check a specific gunReport an error ↗

Source

Official wording
ATF P 5300.11, April 2025 edition · Section II · PDF p. 7 ↗ · 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, “Wisconsin State Patrol” ↗, years (estimate: derived from related facts)
  2. Wikipedia, “M1911 pistol” ↗, years (estimate: range of the base model): ATF says "70 series"; the variants table dates the Colt Government Mk. IV Series 70 1970–1983 (disagrees with the derived 1984 by a year; y covers both)
  3. Wikipedia, “Colt's Manufacturing Company” ↗, country: American firearms manufacturer headquartered in Hartford, Connecticut, U.S. (the maker ATF names)
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 passEditorial confidence: Low → Medium. Re-rated after supporting references were added or re-checked.
  2. Evidence passYears: 1983–1985 → 1983–1984. Derived: the Wisconsin State Patrol was formed September 1, 1939 (Wikipedia), so its 45th anniversary is 1984; ATF's "70 series" points to the Mk IV Series 70, which Wikipedia's M1911 article ends in 1983 — the sources disagree by a year, so y covers both

All corrections · How corrections work

Historical context

M1911 pistol (base model shown for Colt Government Model, Wisconsin State Patrol 45th)
Shown: the base M1911 and M1911A1, not the Wisconsin State Patrol 45th Anniversary edition.

Image: Wikimedia Commons, “M1911 and M1911A1 pistols.JPG” by Dkamm at English Wikipedia, Public domain. Retrieved October 2026.

Summary: Wikipedia, “M1911 pistol”. Text CC BY-SA 4.0.

FROM WIKIPEDIA

The Colt M1911 is a single-action, recoil-operated, semi-automatic pistol chambered primarily for the .45 ACP cartridge.