Description
The M45 Boresight is used to detect deflection and elevation errors in the mortar sight unit. It has a body with machined surfaces which is then attached or clamped to the mortar tube. A fixed-focus elbow telescope and body assembly is used with a distant aiming point to align the mortar tube and verify that the mortar sight unit is accurate.
Made of glass, brass, and steel, this item is in EXCELLENT used condition! There are some slight marks, scratches, and wear, but it is still VERY SOLID otherwise and retains 95% original finish! The optics are VERY NICE with no marks or haziness! Also comes complete with the original rubber eye cup and mount, both which are usually missing. Would make a PERFECT addition to any collection or display!