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   Data updated: 13 Jan 2026. Home |  About Quick Search |  ASSIST |  ASSIST Updates Document Details
Document ID:   MIL-A-48449       Scroll down to access document images

Overview
Title:  Alignment Device, Optical, Gun Bore
Scope:  This specification covers the M139, M140, M139A1, M140A1 and M154
Alignment Devices which provide a close-in optical reference to check the boresight of the fire control at the weapon site. They each have an illuminated reticle.
Status:  Active Document Date:  01-MAR-2023      
  Next Review Due:  28-FEB-2028
4931 Doc Category:   Detail Specification  

Responsibilities
Lead Standardization Activity:  AR  US Army Combat Capabilities Development Command, Armaments Center  
  Preparing Activity: AR  US Army Combat Capabilities Development Command, Armaments Center
Coordination:  Limited  
Army Custodian:  AR   US Army Combat Capabilities Development Command, Armaments Center  

Amendments to military specifications or specification sheets issued after August 1, 2003 are incorporated in the modified document.
Revision History Click on column headings for a description of column content.
MediaDocument Part DescriptionDist StmtDocument DatePagesSize
Document ImageRevision A Notice 4 - ValidationA01-MAR-202311.9 KB
Document ImageRevision A Notice 3 - ValidationA12-JAN-201811.9 KB
Document ImageRevision A Notice 2 - ValidationA12-MAR-201311.9 KB
Document ImageRevision A Amendment 4 (all previous amendments incorporated)A23-FEB-20061452.4 KB
Document ImageRevision A Notice 1 - InactivationA11-JUL-199613.3 KB
Document ImageRevision A Amendment 3 A10-SEP-1990265.4 KB
Document ImageRevision A Amendment 2 A29-NOV-1985146.0 KB
Document ImageRevision A Amendment 1 A27-SEP-1983111.2 KB
Document ImageRevision A A19-OCT-198117141.6 KB

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