Between 175-300 dollars depending on overall condition and a good bore.
With the serial number that you have supplied,your Marlin(Glenfield) rifle was made in the year 1980.
With the serial number that you have provided,your Glenfield model 30A was made in the year 1977.
1980.
1978
Your Marlin model 30A was made in the year 1978,with the serial number that you have provided.
1978
1978
1976. www.countrygunsmith.net
I would check the lower tang,under the lever.
Check w/ Marlin through their website, customer service.
cant answer that question im tha one that typed it elcamino355
Your serial number dates your rifle to the year 1982.