I purchased a used Colt Officers ACP that has a one piece barrel and single port compensator. The finish is an exact match to that of the gun which makes me think it may have come from the factory that way. I haven't been able to find much online and was looking for any information. Did Colt make this variation of the Officers ACP as a factory gun? During what years was it produced? how many were made? Anything would be great. Also, any idea of how much this pistol would be worth; it's in about 95% condition or better.