Description

Hart shims are used to shim the low ring, until alignment is close, then you can lap the rings, with a lapping bar, to achieve perfect alignment, and prevent damaged scope tubes.

Shim packs available in .505-.600 & .860 hole spacing.

They can also be used to increase or decrease MOA in scope.

Each kit contains 7 skims: 2 – .002, 1 – .005 & 4 – .010