This Marble's sight slot blank is perfect for filling a dovetail after a sight has been moved or replaced with a peep sight. Can be reshaped and refinished to achieve the desired look.

Note: Sight slot blank will measure between 0.393"-0.396" to allow for fitting

3/8" dovetails are found on most American made rifles such as Winchester, Marlin, Savage as well as a lot of other non metric makers such as Lithgow and Slazenger. European and Japanese rifles tend to have metric dovetails which are slightly larger or smaller.

Sights sre generally tapped out from left to right and the sight or blank installed from right to left.