Colt Government Model 1991 Series (Series 80) .45 ACP, 5-inch, Blued, 2012, O1991
This Colt Government Model 1991 Series (Series 80) is a full-size, U.S.-made .45 ACP with a 5-inch barrel and classic blued/black oxide finish. Produced in 2012, it carries the factory model code O1991 and retains the traditional Government Model configuration with a GI-pattern recoil system. It comes with its Colt factory blue hard case, manual, lock, and two 7-round steel magazines.
Condition
Overall Condition: Very good condition, showing only light, superficial signs of prior handling or use.
Bore Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: Minor scratches and small blemishes are present on exterior surfaces. One of the two provided magazines does not automatically lock the slide back on empty.
What’s Included
- Colt Government Model 1991 Series .45 ACP pistol
- Two 7-round steel single-stack magazines marked "45 ACP"
- Colt factory blue hard case with factory label (Model O1991)
- Colt Series 80 Pistols safety and instruction manual
- Gun lock
The Government Model 1991 Series pairs the classic 1911 profile with Series 80 internal safety engineering. It is a single-action, semi-automatic .45 ACP built on a full-size carbon steel frame and slide, with a 7+1 capacity and a 5-inch barrel. Manual thumb safety, grip safety, and the Series 80 firing pin block provide the expected control features for this configuration.
The pistol wears a blued/black oxide finish with matte rounds and polished flats for a traditional Colt look. The slide features a lowered ejection port and vertical rear-only serrations. A GI-pattern recoil system with a short guide rod and closed spring plug complements the non-railed Government Model frame.
Sighting is via a fixed 3-dot setup: a staked front blade with a white dot and a fixed, dovetailed rear notch with two white dots. Controls include a solid, non-skeletonized trigger and a spurred hammer. Grips are checkered varnished wood panels with a large integral COLT logo.
Factory documentation aligns with the configuration: the case label lists Government Model .45 ACP, 5-inch, blue finish, Model O, with model code O1991 confirmed. This example was manufactured in 2012 in the United States and includes two 7-round steel magazines along with its factory case, manual, and lock.