MIL-PRF-13830B (NOTICE 2), PERFORMANCE SPECIFICATION: OPTICAL COMPONENTS FOR FIRE CONTROL INSTRUMENTS; GENERAL SPECIFICATION GOVERNING THE MANUFACTURE, ASSEMBLE, AND INSPECTION (07 JAN 2000) [SUPERSEDING MIL-O-13830A]., MIL-PRF-13830 B, dated 9 January 1997, is hereby reactivated and may be used for either new or existing design acquisition.