As of Aug, 2009, you can find the manual for it here: pdf.textfiles.com/manuals/FIREARMS/jchiggins_88.pdf
They have them here at this site for $30. http://www.ammoclip.com/H/higgins,_j_c_.htm
In 90-95% condition, these generally sell for $150-$175. sales@countrygunsmith.net
To clean a JC Higgins Model 80 pistol, first ensure the firearm is unloaded and the magazine is removed. Disassemble the pistol according to the manufacturer's instructions, usually involving removing the slide from the frame. Clean the barrel with a bore brush and cleaning patches soaked in solvent, then wipe down the slide and frame with a cloth. Finally, reassemble the pistol and apply a light coat of gun oil to moving parts to ensure proper lubrication.
The JC Higgins Model 80 was actually made by High Standard for Sears, and is the same as the M101 Duramatic pistol. Made from 1957 through 1961/62. These can be bought on the use marked for $200-$250.
About 25% less than the corresponding High Standard model. So... from $150-$300 depending on condition. We are always interested buyers. www.countrygunsmith.net
will the 7 shot magazine you sell for the old marlin model 80 fit my j c Higgins model 103.228
Same as High Standard model 101 .22 caliber pistol. gunclips.net has them for $35 but sometimes the after-market mags need adjustments. I'd head to the local gun show, take your pistol along and check for proper fit. Good luck!
You can download a manual from the Colt webiste; ask a gunsmith for help
Both the Sears 103.2 and the 103.228 models are a Marlin Model 80 rifle.
the model 42 is the same as the marlin model 80
Left side, towards rear of slide.