1978. sales@countrygunsmith.net
Your Glenfield model 30A was made in the year 1979.
1980.
1978
Double check your serial number. sales@countrygunsmith.net
With the serial number that you have supplied,your Marlin(Glenfield) rifle was made in the year 1980.
Right below the hammer.
1978
Your Marlin model 30A was made in the year 1978,with the serial number that you have provided.
1980, about $175.
1978
subtract 18 from 100=82. 1982
1976. www.countrygunsmith.net