Description
This Colt Trooper MK V Experimental Prototype falls firmly into the second category.
Documented by a factory letter from Colt’s Archive Properties, this revolver is confirmed as an experimental prototype in nickel finish retained by the Colt factory. Prototypes from Hartford are rarely encountered in any configuration, and even more rarely in such a complete and carefully preserved state.
Chambered in .357 Magnum and fitted with a 6-inch solid rib barrel with standard markings, this Trooper MK V showcases the robust refinement that defined Colt’s late double-action development. The MK V series introduced a redesigned action system, stronger, more compact, and engineered for durability, marking a significant evolution from earlier Trooper variants.
What immediately sets this example apart is its striking factory nickel finish paired with blue-accented sights. The polish is crisp and reflective, highlighting the clean lines of the ventilated rib barrel and full-lug profile. The revolver is fitted with varnished and checkered wraparound walnut stocks featuring gold-plated Rampant Colt medallions, complementing the bright metal finish with warmth and balance.
The sideplate bears the Rampant Colt and “V” logo, reinforcing its place within the MK V lineage while underscoring its prototype status.
Accompanied by its factory presentation case, cleaning rod, brush, and Colt factory letter, this revolver stands as more than a fine example of the MK V platform; it is a tangible piece of Colt developmental history. The factory letter confirms its experimental designation and notes that it was retained by Colt prior to later shipment, further elevating its collector significance.
For the advanced Colt collector, prototypes represent the most intimate layer of a manufacturer’s legacy. They reflect decision points, engineering refinement, and the quiet testing that precedes production. Opportunities to acquire such pieces are exceptionally limited.
This Colt Trooper MK V Experimental Prototype offers exactly what serious collectors pursue: documented rarity, factory provenance, and a direct connection to the evolution of one of Colt’s most respected double-action revolver platforms.















