Description Colt 1911 Service Model Conversion Ace in .22 Long Rifle with one, ten round removable magazine and a 5″ barrel. 1911 frame with a .22 conversion slide. Checkered wood grip plates. Blued frame, solid trigger, checkered hammer and serrated slide. Magwell located lanyard loop. Lower left side of frame checkered magazine release button. Backstrap safety. Left side of frame checkered slide release and slide stop safety. Stevens rear adjustable and front fixed blade sight. Frame dates to 1918 and the slide dates to 1946-1947. Barrel marked with electric pencil 737. Top of slide marked: U 737. Left side of frame Eagle S8 inspector proof mark. Must ship to a C&R or FFL holder. Condition: Good with finish wear/loss, scratches and touches of rust. Clean rifled bore. Barrel Length: 5″ Serial: 328133 Manufacturer: Colt Year: 1918 Caliber: .22 .45 Year-Range 1946-1947 Book# 172