MIL-R-6771B (INTERIM AMENDMENT 3), MILITARY SPECIFICATION: REFLECTOR; GUNSIGHT GLASS (23-APR-1990)

MIL-R-6771B (INTERIM AMENDMENT 3), MILITARY SPECIFICATION: REFLECTOR; GUNSIGHT GLASS (23-APR-1990)., This interim amendment is approved for use within the U.S. Army Armament, Munitions, and Chemical Command, with MIL-R-6771B, dated 20 September 1954.