The SA80 (Small Arms for the 1980s) is a family of 5.56 mm small arms esigned and produced (until 1988) by the Royal Small Arms Factory at Enfield Lock. In 1988 production of the rifle was transferred to the Royal Ordnance’s Nottingham Small Arms Facility (later British Aerospace, Royal Ordnance; now BAE Systems Land Systems Munitions & Ordnance).