Call Marlin Customer Service 800-544-8892. Place orders there. Part # 504046. Glenfield 20 is same as Marlin Model 780, except for the wood.
Glenfield was made by Marlin. Check with a local gun shop.
On my model 20 its on the left side of the barrel directly up from the clip.
Bolt action, clip feed 7 shot, made between 1960 and 1966.
Your serial number indicates that your Glenfield model 20 bolt action was made in the year 1980.
$90.00 to $40.00 depending on condition.
We have them. gunshop@nctv.com
Made between 1960 and 1966.
Glenfield Marlin Model 25 rifles were patterned after the Marlin 80C and Marlin 780 rifles. The Glenfield name was added for sales to coast-to-coast chain-stores versus stores that were specific Marlin dealer stores. The Glenfield 25 was manufactured from 1979 through 1982 according to Brophy. Others would suggest the Marlin Glenfield 25 was produced from 1972-1982. Regardless, the Glenfield name was dropped in 1983. The rifle continued as the Marlin Model 25 until 2003, which then became the Marlin 925. Differences between the Marlin and Glenfied were purely cosmestic i.e. birch stocks instead of walnut stock, different trigger guards, and triggers (black instead of gold colored). It is still being produced in .22LR (Marlin 925) and .22 Magnum (Marlin 925M) versions today. Most parts between the Glenfield 25 and Marlin 780 will interchange with no problem. Some of the Glenfield 20 and 25 will interchange as well. However, not all late model parts between the Marlin 780 and Marlin 80 will interchange with those models made in the pre-70s.
The Marlin model 20 was introduced in 1966. It became the model 80. Value is approx. $125. to $160. Answer courtesy of Teddy Roosevelt at Gallery of Guns
I'm not too sure of the value, but a Glenfield is a low end Marlin produced to make them more affordable, I own one and have become quite attached to it, the only complaint I have is the quality of the ammo clip. UPDATED ANSWER - A used model 20/25 in good or better condition (80%+) has a value of around $70-$120.
Glenfields are Marlins marked for sale by 'second-tier' retailers.
The Glenfield model 75C is a carbine variant of the Marlin model 60 produced for 1975 to 1992 by th m Mrlin Firearms Company under the name of Glenfield. Differences include shorter 18 inch barrel compared to the Marlin's 20. Length of pull on the Glenfield is shorter. The Glenfield also has a shorter and lower capacity magazine tube. The Glenfield hold 9 shots in the magazine, while current Marlins hold 15. Nearly all parts are interchangeable, and the Glenfield can be converted to modern full sized Marlin 60 specifications if desired.