Armed Forces in 1941, where it saw mass-production. They were adopted to the British, Canadian, Australian (and other Commonwealth countries). The first Lee-Enfield models were designed in 1895, but the No 4 variant was designed in 1939 to answer to the need of easily manufactured rifles of the carbine. 4 Mk I Rifle Short is a variant of the British Lee-Enfield rifles. The Birmingham Small Arms Company Limited Lee Enfield No.4 Mk 1 Lee Enfield No.4 Mk 1