Colt Government Model MK IV/Series '70 .45 ACP, 5-Inch, Blued, 1977 Production Full-Size 1911
This Colt Government Model MK IV/Series '70 is a full-size .45 ACP 1911 manufactured in 1977. It features the classic Series '70 firing system, a 5-inch barrel, and a blued steel frame and slide with polished flats and matte rounds. Its GI-style fixed sights, traditional controls, and period-correct features make it a strong example of late-1970s Colt production.
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: This firearm is in great shape, with minor, superficial scratches and blemishes from prior handling.
What's Included
- 1x 7-round single-stack steel magazine
Built on a full-size Government Model steel frame and slide, this Series '70 pistol retains the defining configuration of the era: a 5-inch barrel, blued finish with polished flats and matte rounds, and a matte-top slide. Vertical rear cocking serrations and a standard (non-lowered) ejection port further reflect its period-correct setup.
The Series '70 firing system omits a firing-pin block for a classic 1911 action. Sights are GI-style fixed irons with a ramped blade front and square-notch rear, offering a traditional sight picture. Capacity is the standard 7+1 in .45 ACP.
Controls and ergonomics follow the traditional Colt pattern: arched mainspring housing, short solid trigger, and spur hammer, paired with thumb and grip safeties. Checkered walnut grips with Colt medallions complete the factory-style appearance.
Manufactured in 1977 in the USA, this example aligns with the G70 suffix serial format typical of late-1970s production. The barrel hood is marked 'COLT .45 AUTO. MK. IV/SERIES '70'. The Series '70 line is known for Colt's Accurizor collet-bushing/tapered-barrel system; the specific bushing type on this pistol is not confirmed.