Colt Government Model MK IV/Series '70 .45 ACP 5-inch Blued 1911 (1973)
This 1973 Colt Government Model MK IV/Series '70 is a full-size .45 ACP 1911 built on a steel frame and finished in blued steel with polished flats and matte rounds. It features the Series 70 firing system without a firing-pin block, correct factory rollmarks, and a 5-inch Government-length barrel. Early 70G-prefix production and an excellent, mirror-bright bore add to its appeal for buyers seeking a classic Series 70 configuration.
Condition
Overall Condition: Fair condition, showing extensive 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: The slide shows finish loss with rust concentrated on the top. The pistol displays markings consistent with prior handling and use.
What's Included
- Colt Government Model MK IV/Series '70 .45 ACP pistol
- One 7-round steel single-stack 1911 magazine with witness holes
Built on the classic 1911 platform, this Government Model is a full-size, single-action, short-recoil, locked-breech pistol chambered in .45 ACP with a standard 5-inch barrel and 7+1 capacity. It retains the Series 70 system with no firing-pin block, preserving the original trigger feel associated with this era.
The pistol wears a blued finish with polished flats and matte rounds over a steel frame and slide. Controls include a manual thumb safety and grip safety, a short solid trigger, and a wide spur checkered hammer. It has an arched mainspring housing and a smooth front strap, complemented by smooth wood grip panels with Colt medallions.
Slide features include rear vertical cocking serrations and a standard ejection port. The GI-style recoil system uses a plug and standard bushing. Sights are fixed, with a staked front blade and a square-notch rear. The barrel hood is marked "COLT .45 AUTO."
Factory markings are present: the left slide reads "COLT'S MK IV/SERIES '70 GOVERNMENT MODEL .45 AUTOMATIC CALIBER" with the Rampant Colt, and the right slide reads "COLT'S GOVERNMENT MODEL." The right side of the frame is marked "COLT'S PT. F. A. MFG. CO., HARTFORD, CONN.
U.S.A." This example is an early Series 70 with a 70G serial prefix, manufactured in the United States in 1973.