Extension Rings allow you to shorten or lengthen your ring spacing on rifles. A common application is on firearms with long actions, where the normal 4-inch ring spacing is not possible. But whether you are lengthening or shortening the ring spacing, Leupold's extension rings allow you 5/8-inch of adjustment.
Warranty: Full lifetime guarantee. If any product has defects in materials or workmanship, Leupold will, at their option, repair or replace it free. Even if you are not the original owner.