Weaver #58 top mount base.

[Catt57]

PM me if you have one you want to sell.

 

[BUDMAN-BILL]

Whats it fit?

 

[Catt57]

Whats it fit?

Marlin Levermatic 56/57/57M

 

[BUDMAN-BILL]

Gotcha, I have a whole box of these and tried to match them up with the one in the picture with no luck so far

 

[Catt57]

Gotcha, I have a whole box of these and tried to match them up with the one in the picture with no luck so far

There 2 screw holes are 3.25" center to center if that helps. And the receiver is a flat top.