Colt Trooper MK III .22 WMR Revolver, 6-Inch, Polished Blue, Adjustable Sights (1979)
This 1979 Colt Trooper MK III stands out for its uncommon .22 WMR chambering within the Trooper MK III line, paired with a 6-inch heavy barrel and polished blue carbon-steel construction. It features the Mark III lockwork with a transfer-bar ignition system, adjustable sights, and classic checkered walnut grips with gold Colt medallions. The serial-number Y-prefix denotes the rimfire series, adding useful context for Colt enthusiasts.
Condition
Overall Condition: Very good condition, showing only light, superficial signs of prior handling or use.
Bore Overall Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: The revolver presents in great shape overall. Minor, superficial scratches and small blemishes are present.
What's Included
- Colt Trooper MK III .22 WMR revolver
The .22 WMR chambering is less common for the Trooper MK III series, making this example noteworthy among Colt rimfire revolvers. It uses a six-round cylinder and the rimfire Y-prefix series, aligning it with Colt's dedicated .22 Magnum production within the Mark III lineup.
Built on Colt's medium J-frame, this revolver uses carbon-steel construction with a polished blued finish on the frame, cylinder, and receiver. The 6-inch heavy-profile barrel and shrouded ejector rod give it a purposeful, well-balanced feel. The frame displays the Colt Rampant Pony logo, and the checkered walnut stocks carry gold Colt medallions.
Sighting is handled by adjustable iron sights, combining a serrated ramp front with an adjustable square-notch rear for precise zeroing. The revolver is double-action/single-action with a smooth trigger and a spurred hammer for confident, deliberate control.
Colt's Mark III lockwork uses a transfer-bar ignition and a coil mainspring, providing modernized internals relative to earlier Colt actions. This system, combined with the transfer-bar safety feature, supports reliable rimfire ignition while preserving the Trooper's familiar handling and durability.