NUMRICH GUN PARTS SELLS THEM ON THEIR WEB SITE
Contact Remington or try e-gunparts.com
it is a model which is schematic
Go to www.e-gunparts.com/model.asp?idDept=204 very good diagram
You can locate a schematic at http://www.remington.com/pdfs/om/om_11001187.pdf.
Remington Model 12 barrels are threaded to the action. Barrels can be replaced with the proper equipment.
http://www.e-gunparts.com/productschem.asp?chrMasterModel=0860z788
Model R-12
Did you a mean Remington SPR220? Remington SPR220 is a side-by-side shotgun. You can get a schematic of this fine shotgun from down loading the owners manual from Remington. Kathleen
1919
Send me your email & I'll send you a scan of the manual & exploded view.
There are 3 options,,call Remington and ask, they do not have it posted on there web site but might have it around. Buy it---http://www.gungarage.com/remingtonacc.htm Go to a gun dealer and ask, most have one for repair parts.
Remington never made a model 22, a model 12 pump (1910), or a model 24 semi-auto (1925).