Colt Trooper MK III .357 Magnum Revolver, 4-inch Blued, DA/SA, Adjustable Sights
This Colt Trooper MK III stands out with its MK III transfer-bar lockwork, heavy 4-inch barrel with a solid rib, and polished blued carbon-steel construction. It features Accro-style fully adjustable sights, checkered walnut grips with Colt medallions, and a fluted six-shot cylinder. The J-suffix serial format is correct for the MK III series, and the square-butt frame carries the Rampant Colt logo. Made in the United States.
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: There is small finish loss on the cylinder and a small scuff on the barrel. The bore is clean and bright.
What’s Included
- Colt Trooper MK III .357 Magnum revolver
The MK III series introduced Colt’s transfer-bar safety system with coil springs, and this example reflects that robust design. It is a double-action/single-action revolver with a smooth-faced trigger and an exposed hammer featuring a wide, checkered spur for positive cocking.
The 4-inch heavy-profile barrel is carbon steel with a solid top rib and a short underlug. Sighting is handled by a pinned, ramped, serrated front blade and a fully adjustable square-notch rear in the Accro style, giving precise point-of-aim adjustment.
Construction is all carbon steel with a polished blued finish on the frame, cylinder, and receiver. The square-butt frame is fitted with checkered walnut stocks bearing Colt medallions. The fluted six-shot cylinder and Rampant Colt logo on the frame reinforce the model’s classic Colt character.
Additional MK III identifiers include the J-frame design reference and the J-suffix serial format used on this series. Overall length for the 4-inch MK III configuration is approximately 9.4 inches.