Need serial number to answer. Go to proofhouse.com to look up.
your colt combat commander was made in 1972.
Your Colt commander was made in 1977.
Your Colt was made in 1977.
1979
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 to find out.
You will have to call Colt to find out.
Based on the serial number, your Colt was made in 1977.
Made in 1976.
1978
1978
The records I have show A Colt combat commander with the serial number 70SC01510 being made in 1971.