The age would be between 1983 and 1985 the MK IV came out in 83' and the cfo is between 83-85.
The best I can do is say that your colt Combat commander series 80 was made from 1983-1996.
You will have to call Colt
my guess would be late 1970's.................
You need to call Colt
How can I find out what year Colt Combat Commander Mark 4 Series 80 was made?
You must call Colt to find out.
Can't find a serial number listed for combat commander starting with fos.
What is the production year of a colt combat commander with serial number 70sc5572? Early 1972.
You did not provide a serial number.
Colts serial number database lists only the Combat Commander, and they have no serial numbers that begin with "CJ", though for a number of years the Combat Commander had serial numbers that began with "CL"
70 series ,about $700 max
According to proofhouse.com ,a Colt combat commander with that serial number was manufactured in 1977. The 1978 series started with 70SC57900.