The frame appears to be correct. That is a GCNM wide trigger. Hammer and safety are correct. MSH is not correct, should be flat, but I'd be surprised if that isn't the original frame on it. My early 80 series GCNM also has the vertical grooves on the front strap. I bet this is a very early 80 series that has a bunch of 70 series parts on it. Does this one have a collett bushing? Is it chromed or stainless?
Colt's customer service will give you the date of birth over the phone... give them a call. They will also tell you how the gun shipped, i.e. what model that lower was from. You might as tell them you need a couple roll pins for the elliason rear sight while you are at it, if the roll pin hasn't broke, it will. They will send those for free.
Colt's customer service will give you the date of birth over the phone... give them a call. They will also tell you how the gun shipped, i.e. what model that lower was from. You might as tell them you need a couple roll pins for the elliason rear sight while you are at it, if the roll pin hasn't broke, it will. They will send those for free.