Colt Trooper MK III .357 Magnum

Updated August 24, 2026

This Colt Trooper MK III double-action/single-action revolver is chambered in .357 Magnum and represents an interesting example of Colt’s classic heavy-duty revolver line. Serial number 41350L, this example features an approximately 4" barrel with a shiny bore and is in fair overall condition. The revolver utilizes a substantial steel frame with an exposed hammer, swing-out cylinder, and custom wood grips that give it a distinctive traditional appearance. Plenty of handling and finish wear is present throughout, and “7-12-8” has been engraved into the revolver frame, adding a unique personalized detail. Colt introduced the Trooper MK III during the late 1960s as part of a redesigned generation of double-action revolvers, and the model earned a strong reputation among enthusiasts of classic Colt wheelguns. With its .357 Magnum chambering, custom grips, 4" barrel, shiny bore, and well-worn appearance, this revolver offers plenty of vintage Colt character. Please see photos. Colt Trooper MK III .357 Magnum DA/SA 4 Shiny 41350L Fair

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