.22 LR. 5" barrel length. SN: NSN. Blued metal finish with polished chamber mounting adjustable target rear notch and Patridge front blade sights. Slide is marked 22 CONVERSION UNIT below the ejection port on the right flank. Left flank struck COLT MK IV/SERIES 80 followed by the {Rampant Colt} logo. Item comes in COLT marked cardboard box with the owner's manual, a Colt Series 80 manual, slide, chamber, ejector, recoil spring, barrel bushing, slide stop, and one magazine. Kit is incomplete as it lacks the recoil spring plug and guide rod.