Savage - Stevens model 320 12 ga. scope rail?

[Lucky Clucker]

 Can someone help me find where and what size scope rail fits a Stevens model 320 field grade mossy oak  shotgun. It is drilled and tapped , I need a scope on it and cannot find one that fits it, the Moss. 500 rail looks like it will but not sure. it has 4 holes  .

[Izzyjoe]

You may have to use the mossberg mount and modify it to fit.

[Lucky Clucker]

I thought of it.Going to take gun to a shop and see if the holes line up.