Colt 70 Series look up

[hitch 1911]

Looking to buy a New Colt 70 series serial 71B9920, but can't find the build date. Went to Colt web site but it is not listed.....................went to another site and no 70 Series serials start with 71B. Any help would be appreciated. Thanks

[DJG]

Call colt and they will give you a date. I did it with a 70 and 80 series governments and they gave me the dates over the phone.