Colt MK IV/Series 70 Government Model .45 ACP 1911, 5-inch, 1977, Two-Tone Finish
This 1977 Colt MK IV/Series 70 Government Model is a classic full-size .45 ACP 1911 with period-correct features and clean presentation. It shows the pre-Series 80 design with no firing-pin safety, a two-tone look with bright-polished slide flats and a matte/satin frame, and fixed GI-style sights. Checkered walnut stocks with gold Colt medallions and original rollmarks throughout underscore its authentic Series 70 character.
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: The pistol is in great shape overall with a few minor surface scratches and small blemishes from light handling and prior use.
What’s Included
- Colt MK IV/Series 70 Government Model .45 ACP pistol
- 1x 7-round steel single-stack 1911 magazine with witness holes
Built in 1977, this full-size 5-inch Government Model represents Colt’s MK IV/Series 70 era with its pre-Series 80 internal geometry and no firing-pin safety. It is chambered in .45 ACP with a single-stack 7+1 capacity.
The pistol features fixed GI-style sights with a small front blade and square-notch rear, rear-only vertical cocking serrations, an internal extractor, and a standard (non-lowered) ejection port—details consistent with period Government Models.
Controls and ergonomics include a short, solid trigger, spur hammer, left-side thumb safety, short-tang grip safety, an arched serrated mainspring housing, and a smooth frontstrap. Checkered walnut grips with gold Colt medallions complete the classic appearance.
The observed finish presents a two-tone look: bright-polished slide flats paired with a matte/satin frame. Rollmarks include the right-slide "COLT'S GOVERNMENT MODEL," the left-slide "COLT'S MK IV/SERIES '70 • GOVERNMENT MODEL • .45 AUTOMATIC CALIBER," and the manufacturer address "COLT'S PT. F.A. MFG. CO.
HARTFORD, CONN. U.S.A." The barrel hood is marked "COLT .45 AUTO MK. IV / SERIES '70."