Axis bolt clearance

[Cru3rd]

So what's the difference between the signature zee rings and the zee rings?

[thomae]

So what's the difference between the signature zee rings and the zee rings?

"Signature" rings have the Pos-Align inserts. Plain Zee rings don't. ("Zee" refers to the shape of the cut used to allow the rings to fit on a Weaver or Picatinny rail)