Colt .22 Caliber Conversion Unit for 1911 Government — .22 LR, Blued, Floating Chamber, Adjustable Rear Sight, Includes One Magazine
This Colt .22 Caliber Conversion Unit is a factory Colt .22 LR slide and barrel assembly designed for the 1911 Government platform. It features a Government-length, all-steel blued slide with polished flats and matte rounds, an adjustable rear sight, and a fixed front blade. The unit uses a simple blowback system with a floating chamber marked "COLT" and carries classic Colt markings across the slide. It includes the installed barrel, floating chamber, plus a loose recoil spring and one magazine, and comes with the factory Colt box.
Condition
Overall Condition: Good
Bore Condition: The bore is clean and shiny; the rifling shows blemishing.
Specific Condition Notes: The blued surfaces show scratches and blemishes, and there are light spots of pitting present.
What’s Included
- .22 LR Conversion Unit slide assembly with adjustable rear sight, fixed front blade, barrel and floating chamber installed
- Loose recoil spring for the conversion unit
- One .22 LR magazine
- Factory Colt Conversion Unit cardboard box with yellow end label
This is a factory Colt conversion built for the 1911 Government platform, compatible with Colt Government Model .45 and Colt Super .38 pistols. It converts the host pistol to .22 LR using a simple blowback system paired with Colt's floating chamber design. The floating chamber is marked "COLT" and is part of the original configuration.
The slide is Government length and all steel, finished in blue with polished flats and matte rounds. It has rear vertical cocking serrations for traction. Sight regulation is handled by an adjustable rear unit, paired with a fixed front blade for a clear sight picture in a classic 1911 format.
Factory rollmarks include "CONVERSION UNIT COLT AUTOMATIC CAL. 22 L.R." with the Rampant Colt and the Hartford, Conn., U.S.A. address. No factory serial number is observed, consistent with this type of conversion unit.
This assembly includes the installed barrel, floating chamber, a loose recoil spring, one magazine, and the factory Colt cardboard box with yellow end label. It is a full-size unit intended for Government-pattern frames.




