straight from marlin
$100
ammoclip.com $18 plus shipping The Glenfield model 25 was made by Marlin as the model 80
Go to marlinfirearms.com and they are in the accessories area. -- They Have the Current Style -- There have been a few different magazines used in that model. I have all of them, new. sales@countrygunsmith.net
$25 to $125, depending on model and CONDITION.
They don't have clips. They have magazines. You can order them through Numrich.
With the serial number that you have supplied,your Glenfield rifle was made in the year 1973.
Try e-gunparts.com
MARLIN'S WEBSITE! about $13.00 each.
Your Glenfield Model 25 is actually a Marlin Model 80 with sling swivels. According to leverguns.com Forums all of the Glenfield rifles were numbered right along with the Marlines. According to http://armscollectors.com/sn/marlinlookup.php your rifle was manufactured in 1973.
The Glenfield 25 was manufactured from 1979 through 1982. Some would suggest the Marlin Glenfield 25 was produced from 1972-1982. Regardless, the Glenfield name was cancelled in 1983. The rifle continued as the Marlin Model 25 until 2003, which then became the Marlin 925. Thousands were produced so YES it is common to find a Marlin-Glenfield Model 25. How many original matching Marlin scopes made it so far with the rifle however is another story. I have not seen many with the matching scope so this may be uncommon. The Model 25 is a robust and classic rifle. Enjoy :)
About $150.00
1974, made in Connecticut.