Enfield Revolver is the name applied to two totally separate models of self-extracting British handgun designed and manufactured at the government-owned Royal Small Arms Factory in Enfield; initially the .476 calibre (actually 11.6 mm)[1] Revolver Enfield Mk I/Mk II revolvers (from 1880 1889), and later the .38/200 calibre Enfield No. 2 Mk I (from 1923 1957).