Colt Government Model O1991 '100 Years of Service' .45 ACP 1911, Full-Size, Matte Blued, 5-Inch Barrel (2011)
This Colt Government Model O1991 stands out for its 2011 centennial '100 Years of Service' slide rollmark, applied only during the calendar year 2011. It is a full-size, steel-frame .45 ACP 1911 with a matte blued finish, Series 80 safety system, and classic Government Model features. Presented in excellent condition with a clean, mirror-bright bore, it includes two 7-round magazines and the factory case and manual.
Condition
Overall Condition: Excellent condition, showing only faint signs of any prior use or handling.
Bore Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: There are little signs of prior use. The firearm is in excellent condition, and the bore is clean and shiny.
What’s Included
- Colt factory blue plastic hard case with matching label for Model O1991 '100 Years of Service'
- Colt factory instruction manual
- Two 7-round steel single-stack .45 ACP magazines marked '.45 ACP'
Produced in 2011, this Government Model features the limited '100 Years of Service' centennial slide rollmark, highlighting the anniversary year. The rollmark was applied only during the 2011 calendar year, adding clear, time-specific interest for buyers who value factory-applied commemorative markings.
Built on Colt’s full-size 1911 platform, it uses a 5-inch barrel and a single-action, locked-breech design. The pistol incorporates Series 80 internal safeties, including a firing pin block, alongside the traditional thumb safety and grip safety.
The steel slide and frame wear a uniform matte blued finish. Slide details include rear-only vertical serrations and the centennial rollmark. The left slide is marked "COLT'S GOVERNMENT MODEL .45 AUTOMATIC CALIBER" with the rampant Colt logo, and the barrel hood is marked "COLT 45 AUTO."
Sighting equipment consists of fixed 3-dot sights with a staked front and dovetailed rear. Controls and furniture follow classic Government Model form: a solid short trigger, wide-spur hammer, double-diamond checkered hardwood grips, a flat mainspring housing with vertical serrations, and a smooth front strap. The standard short recoil spring plug has a checkered face and works with a barrel bushing as specified.
Chambered in .45 ACP with a 7+1 capacity, this pistol comes with two 7-round magazines marked '.45 ACP'. It is packaged in the factory blue hard case with a matching label for the O1991 centennial variant, along with the Colt instruction manual.