Colt Government Model MK IV/Series 70 9mm Luger, Full-Size 1911, 5-inch, Blued, 1979–1980
This Colt Government Model MK IV/Series 70 is a full-size 1911 chambered in 9mm Luger with a 5-inch barrel and classic blued finish. Built in 1979–1980 in the United States, it features period-correct Series 70 details and comes with its original factory box and Series '70 owner's manual. The 70L serial prefix denotes the 9mm Government Model within the Series 70 line, adding clear model context for collectors and enthusiasts.
Condition
Overall Condition: Excellent condition, showing only faint signs of any prior use or handling.
Bore Overall Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: This pistol appears to have been very well maintained and carefully stored.
What’s Included
- Original Colt factory box
- Colt Government Model Series '70 owner's manual
- 1 x 8-round steel single-stack magazine with witness holes
This Government Model retains the hallmark Series 70 configuration: a steel frame and slide finished in blued with polished flats and matte rounds/top. It is a 9mm Luger variant, with the barrel hood marked "CAL. 9MM LUGER" and a capacity of 8+1. The 70L serial prefix specifically identifies this as a 9mm Government Model within the Series 70 range.
Sights are fixed GI-style with a small ramped front blade and a square-notch rear, paired with rear vertical cocking serrations. The slide features a standard, non-lowered ejection port consistent with its period configuration.
Controls and ergonomics reflect classic Colt 1911 details: single-action, short-recoil operation; a short, serrated trigger; and a wide-spur, serrated hammer. Safety features include a single-side thumb safety and a grip safety. The arched, serrated mainspring housing and smooth front strap combine with checkered wood grips bearing Colt medallions.
As a United States–made MK IV/Series 70 produced in 1979–1980, this example offers the desirable blend of traditional Colt construction, clean factory lines, and correct markings. Its complete presentation with the original box, manual, and 8-round magazine underscores its appeal for both shooting and collecting.




