The Colt Agent was another model similar to the Cobra. The original Agents were very well made, with high polished finishes and highly checkered walnut grips. The bottom of the Agent grips was slightly shorter than that of the Cobra. The original Agent weighed 14 ounces and was available only in .38 Special caliber, with a 2-inch barrel and blued finish. It was made from 1955 to 1979. The original Agents had a smaller grip frame from the Cobra which made for a deeper concealment and the grip frame was later changed to match the Cobra in the late 60s. A slightly revised version of the Agent was released in 1973 with a shrouded barrel with a weight of 16 ounces. In 1982, the Agent was briefly revived by Colt, this time with a parkerized finish; production continued until 1986, which made the Agent a much cheaper version of the Cobra.