Saa

Single Action Army. The US Army's classification for the Colt M1873 "Peacemaker" revolver, their standard revolver from 1873 to 1892.

Small Arms Ammunition. The British armed forces term for ammunition used in sidearms and rifles. The acronym was used in 20th century manuals as an abbreviation.

Initialism of Syrian Arab Army.

Initialism of South Atlantic Anomaly.

Initialism of Systems Application Architecture (“an IBM technology”).