Colt Trooper Mk III .357 Magnum DA/SA Revolver, 4 inch Barrel, Adjustable Sights
This Colt Trooper Mk III is a .357 Magnum, double-action/single-action revolver built on Colt's Mk III series platform. It features a 4 inch barrel, a 6-shot fluted swing-out cylinder, and an adjustable square-notch rear sight paired with a ramp/blade-style front sight on a solid rib. The barrel is marked "TROOPER MK III" and "* .357 MAGNUM CTG. *," and the Colt rampant horse logo is present on the left side of the frame.
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 revolver is in great shape with some minor, superficial scratches and blemishes. The bore is clean and shiny.
What's Included
- Spare revolver cylinder (shown removed/separate from the revolver)
The Trooper Mk III is marked for .357 Magnum and uses a 6-round, fluted swing-out cylinder. The serial number is visible on the crane/crane cut and appears as 80367L.
This example is set up with an adjustable rear sight (square-notch style) and a ramp/blade front sight mounted on a solid rib, providing a clear, practical sight picture for a service-style revolver. The barrel length is 4 inches, a widely preferred configuration for a balance of handling and sight radius.
Notable external features include an under-barrel ejector shroud with a full-length appearance, a knurled-tip ejector rod, and a checkered/serrated spur hammer. The revolver is finished in a dark polished finish that matches the classic look of the Trooper line.
It is fitted with two-piece checkered wood stocks with Colt medallions, keeping the presentation consistent with period-correct Colt styling. Trooper Mk III production falls within the late 1960s to 1983 timeframe.