Description
There are production Colts… and then there are the guns that came before production, the quiet test beds where ideas were proven, refined, and sometimes reworked before the public ever saw them. This Colt ACE falls squarely into that second category.
Marked “Colt Service ACE .22 Long Rifle Model,” this early, low-serial example represents the experimental and trial phase of one of Colt’s most innovative rimfire pistols. Developed as a .22 LR training companion to the Government Model, the ACE was intended to replicate the weight, balance, and handling characteristics of the .45 ACP service pistol, an economical training solution with unmistakable 1911 DNA.
What makes this example particularly compelling is its documented Rock Island Arsenal provenance. Accompanied by original mid-1950s sales paperwork and Railway Express Agency documentation, this pistol was sold through U.S. Ordnance channels as a service arm. The archival material not only anchors the pistol firmly in its historical period but also elevates it beyond a simple firearm, making it a documented military artifact.
The pistol itself retains the distinctive features collectors look for in early ACE examples, the proper slide markings, checkered brown grips, parkerized military-style finish, and the unique floating chamber system that gave the Service Model ACE its characteristic recoil impulse. The original .22 LR magazine accompanies the pistol, further reinforcing its authenticity and completeness.
Low-numbered trial and early production ACE pistols represent a fascinating intersection of military procurement, Colt innovation, and mid-century training doctrine. They were never produced in massive quantities, and documented examples tied directly to Rock Island Arsenal are increasingly difficult to encounter in today’s market.
For the advanced Colt collector, particularly those building a focused military or experimental Government Model collection, this is the kind of piece that adds depth and narrative. It is not simply a .22 rimfire variant. It is a transitional firearm. A training tool born from necessity. A quietly important chapter in Colt’s long service history.
And with its documented government sale and low serial status, it stands as a highly desirable and historically grounded example of the Colt ACE lineage.
High Caliber History on YouTube did an amazing and detailed video on the history of this exact firearm. Check that video out by clicking here.
