Colt Trooper MK III .357 Magnum, 6-inch Blued DA/SA Revolver (1977) with Adjustable Sights
Made in 1977, this Colt Trooper MK III is a six-shot .357 Magnum revolver built on blued carbon steel with the MK III transfer-bar lockwork. It features a 6-inch barrel with a solid anti-glare rib, a color case-hardened hammer, and checkered walnut grips with gold Colt medallions. Ramped, serrated front and fully adjustable square-notch rear sights round out a configuration designed for precise shooting.
Condition
Overall Condition: Good condition, showing some signs of prior use and handling.
Bore Overall Condition: Good - Clean, well-maintained, minor wear marks.
Bore Rifling: Good Rifling - Intact, well-defined lands and grooves.
Specific Condition Notes: There is finish wear on the barrel. Small scratches and scuffs are present throughout.
What’s Included
- Colt Trooper MK III .357 Mag. revolver
This Trooper MK III comes from Colt’s MK III series (circa 1969–1983) and is built with the updated lockwork that uses a transfer-bar safety and coil mainspring. This 1977 example reflects that design focus in a robust, user-friendly DA/SA action with a smooth trigger.
The 6-inch carbon-steel barrel incorporates a solid, non-ventilated rib with anti-glare serrations for a clean sight picture. It pairs a ramped, serrated front sight with a fully adjustable square-notch rear, providing precise elevation and windage control.
Construction is all carbon steel with a polished blued finish, complemented by a color case-hardened hammer. The six-shot fluted cylinder swings out via a rear-pull latch, and the ejector rod is partially shrouded by an under-barrel lug for added protection and balance.
Ergonomics and handling are anchored by checkered walnut grips set with gold Colt medallions, along with Colt’s rampant pony logo on the frame. The overall configuration delivers a classic MK III layout tailored for accurate .357 Magnum shooting.