Colt .22 conversion kit with complete slide assembly, barrel with floating chamber, ejector, recoil spring, plunger, slide catch, and magazine. With a Colt wood grain box. Colt .22-45 Service Model conversion unit with number "U1615" on top of the slide, barrel, and floating chamber. Kit includes the complete slide assembly, barrel, floating chamber, recoil spring, plunger, slide catch, magazine, and bushing. With a hinge top box.

Conversion kits are both very fine overall with most of the blue some areas of light spotting, handling marks, and surface scratches. Boxes are also fine with corner and edge wear, and some separations on the Service Model box.