Colt Government Model MK IV/Series 70 .45 ACP, 5-inch 1911 (1982), Blued, Ed Brown Barrel, Adjustable Target Rear Sight
This 1982 Colt Government Model MK IV/Series 70 in .45 ACP is a full-size 1911 with desirable pre-Series 80 internals and tasteful, functional upgrades. It features an Ed Brown .45 ACP barrel, an adjustable white-dot rear target sight paired with a white-dot front blade, and the factory blued finish with polished flats and matte rounds. It comes as a well-appointed package with eight 8-round magazines and useful carry and maintenance accessories.
Condition
Overall Condition: Good condition, showing some signs of prior use and handling.
Bore Overall Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: Handling and use marks are present. See the photos for close-up views of these areas.
What’s Included
- 8x 8-round 1911 single-stack steel magazines (brands observed include Wilson Combat and Chip McCormick Power Mag)
- Leather OWB pancake holster
- Polymer 11 GEAR-branded pistol holster
- Polymer double-mag carrier
- Bushing wrench
Built on Colt’s classic carbon-steel frame and slide, this Series 70 Government Model retains the hallmark factory blued finish with polished flats and matte rounds. The rollmarks are correct for the period, including the left-side "COLT’S MK IV/SERIES ’70 GOVERNMENT MODEL .45 AUTOMATIC CALIBER" with Rampant Colt and the right-side "COLT’S GOVERNMENT MODEL," along with the Hartford, Connecticut frame address.
Key functional elements reflect the pre-Series 80 firing system with no firing-pin block, preserving the original Series 70 lockwork. The pistol is recoil-operated, locked-breech, and single-action only, with a spur hammer, standard short-tang grip safety, and an arched, checkered (diamond pattern) mainspring housing. Safety features include a left-side manual thumb safety, grip safety, and a half-cock notch.
Upgrades enhance shootability while keeping the 1911’s classic character. An Ed Brown .45 ACP barrel is fitted, and sighting is handled by a 3-dot system with a white-dot front blade and a white-dot adjustable rear target sight. The slide carries vertical rear serrations and a standard-height ejection port.
Ergonomics are complemented by black checkered wrap-around rubber grips with gold-tone Colt medallions, offering a secure, hand-filling hold. This full-size 5-inch configuration maintains the traditional 8+1 capacity in .45 ACP, with eight magazines included to keep it range-ready.