Colt MK IV / Series 70 Government Model .45 ACP – 5” Royal Blue 1911 (1981 Production)
Manufactured in 1981, this full-size Colt Government Model represents the final years of true Series 70 production. It features the original pre-Series 80 internal design, a highly polished Royal Blue finish, and classic walnut diamond-checkered grips with Colt gold medallions. Collectors value these late-production pistols for their clean lines, crisp single-action trigger, and absence of the later firing-pin safety.
Condition
Overall Condition: Good condition, showing some signs of prior use and handling.
Bore Condition: Excellent – Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling – Sharp lands and grooves.
Specific Condition Notes: Minor surface scratching, light scuffs, and small blemishes are visible on the slide and frame flats.
What’s Included
- One factory Colt 7-round single-stack magazine marked ‘COLT .45 AUTO’
This pistol retains the sought-after Series 70 collet bushing and tapered barrel, contributing to its well-known mechanical accuracy. The 5-inch carbon-steel slide and frame receive Colt’s high-polish Royal Blue treatment on the flats with matte rounds for reduced glare.
The pre-Series 80 design omits a firing-pin safety, giving the trigger a lighter, less interrupted pull. A short, solid trigger, spur hammer, and traditional grip safety complete the classic 1911 control layout.
These deliver a clean sight picture while maintaining the pistol’s period-correct profile.
Serial prefix 70B places this example near the end of Series 70 production, making it desirable for collectors seeking an original-spec Government Model before Colt transitioned to the Series 80 firing-pin safety system.