Tall Rear Sight Posts For Increased Elevation
Gain increased elevation for those longer shots or cure insufficient sight elevation without machining or permanent alterations. These long stem apertures are simple and easy to install in any XS Rear Sight base equipped with their proprietary, ghost ring aperture.
Big Book Catalog, Issue:65, Page:279
New Product Supplement, Issue:593, Page:006
SPECS: All- steel, matte finish, black. .649" (16.5mm) total height, .350" (8.8mm) threaded shaft length, .218" (5.5mm) diameter aperture, threaded 7/32-40 to accept Williams apertures.