The Royal Small Arms Factory (RSAF), also known by the metonym Enfield, was a UK government-owned rifle factory in Enfield, adjoining the Lee Navigation in the Lea Valley. Some parts were in Waltham Abbey. The factory produced British military rifles, muskets and swords from 1816. It closed in 1988, but some of its work was transferred to other sites.

Enfield is a large town in north London, England, 10.1 miles (16.3 km) north of Charing Cross. It had a population of 156,858 in 2018. It includes the areas of Botany Bay, Brimsdown, Bulls Cross, Bullsmoor, Bush Hill Park, Clay Hill, Crews Hill, Enfield Highway, Enfield Lock, Enfield Town, Enfield Wash, Forty Hill, Freezywater, Gordon Hill, Grange Park, Hadley Wood, Ponders End, and World's End.