Elwood Epp's is a Marbles dealer. Click on the link, above.
There's an installation How-to for a Marlin 39AS with the S/N on the tang on Marble's site. It says there has to be 1/2" centre to centre from the tang screw forward. If the S/N is in that 1/2", the sight won't go on.
Buying or selling anything on E-Bay financially supports the people who don't think you should be allowed to own any firearm.
