The only way to guarantee an answer to your question is for you to call Colt. They can tell you over the phone. Reference books are not up to date on serial numbers for the majoirty of newer production weapons. Blue Book of Gun values might have your sn in it.
How can I find out what year Colt Combat Commander Mark 4 Series 80 was made?
You will have to call Colt to find out.
You will have to call Colt to find out.
To new for sn's to be published. You have to call Colt.
You will have to call Colt to find out.
Call Colt with the sn and they will tell you.
That sn goes beyond published lists. You will have to call Colt to find out.
Requires a call to Colt to find out.
Goes beyond published data. You will have to call Colt.
You will have to call Colt to find out. Sn data not published.
Proofhouse.com has Colt sn data. If not there, you will need to call Colt.
Sometime after 1983.