From my research, the Marlin mod. 80 was produced from 1934 to 1971. Pre 1964 .22s were not required to have serial numbers. Puddlejumper
go to sears pick up a magazine and wow u have a sears magazine
Marlin model 80
the model 42 is the same as the marlin model 80
Try e-gunparts.com or Brownells
the ranger Mod 36 was made by marlin mod 80 1934-1939 ( Blue Book Of Gun Value)
Once you cross reference mod 42dl (Sears mod 103.19800) you will find your rifle is really the Marlin arms Mod 80. Parts are available from Numrich Arms at http://www.e-gunparts.com . Your parts and a schematic will show up under the Marlin 80. Good Luck Joe
The Ranger model 36 is the same as the Marlin model 80. Go to gunbroker.com and type in "Marlin 80 magazine" in the search window. The cheapest one I could find was going for $18 plus postage.
Boyds gun stocks and I believe the marlin mod 80 will be compatible, if not then a bit of wood working will be needed to fit the action.
THE MARLIN MODEL 80 WAS INTRODUCED IN 1934 AND DROPPED IN 1939
Made by Marlin for Sears, and is basically the Marlin Model 101. Worth about $50-$75 in very good condition. www.countrygunsmith.net
$80- $150, if it has the magazine, and if it's in decent shape.