Colt Government Model MK IV Series 80 .45 ACP Stainless 5" 1911 (1986)
This 1986 Colt Government Model MK IV Series 80 is a full-size .45 ACP 1911 built with a stainless steel slide and frame featuring brushed flats and matte/bead-blast rounds. It retains its classic fixed sights, Series 80 firing-pin safety, and single-stack 8+1 capacity, and comes fitted with Pachmayr Signature Model wraparound rubber grips. The bore is excellent with a clean, mirror finish.
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: This firearm is in solid shape. It has various cosmetic imperfections, scratches, blemishes, and finish loss.
What’s Included
- 1x 8-round 1911 single-stack magazine with stainless steel body and polymer bumper pad (brand not marked)
- Pachmayr Signature Model wraparound rubber grips (installed)
The Government Model configuration delivers the classic 5-inch barrel, full-size frame, and single-stack .45 ACP layout. This example is built entirely in stainless steel with brushed flats and matte/bead-blast rounds, pairing durable construction with the traditional Colt 1911 profile.
It features the Series 80 firing-pin safety system along with a left-side manual thumb safety, grip safety, disconnector, and half-cock notch. A spur hammer and GI-style short-tang grip safety maintain the period-correct control layout.
Sighting is straightforward and proven: a staked front blade paired with a square-notch rear in a dovetail. The slide shows vertical rear serrations only and uses a standard GI-style ejection port (non-lowered, non-scalloped).
Ergonomics follow the classic pattern with an arched mainspring housing and single-action (SAO), short-recoil, locked-breech operation. The installed Pachmayr Signature Model wraparound rubber grips provide a full wrap design across the front strap. Capacity is 8+1 rounds in the single-stack magazine format.

