An alignment device for telescopic sight mounts (101) utilizes a front alignment portion (103) and a rear alignment portion (105) installed on a firearm 405. A front bushing (109), clamped in a front mount assembly (401) of the firearm provides a precision sliding fit with a front alignment rod (107). A rear bushing (113), clamped in a rear mount assembly (403) of the firearm provides a precision sliding fit with a rear alignment rod (107). Acceptable alignment of the front and rear mount assemblies is indicated by full engagement of a male indicator portion (115) of the front alignment rod and a female indicator portion (117) of the rear alignment rod when the respective rods are slideably engaged. A bore sight engagement element (151) allows bore sighting of the mounts with the rifle bore (425).

 
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