The R4, a standard issue for all soldiers, is a South African assault rifle with a folding stock and 5.56mm calibre. It was developed in 1980 to replace the aging R1 (a variation of the FN FAL). This weapon first saw active service in South West Africa (Namibia) and in raids into Angola and other neighbouring southern african countries in the early 1980s. The R4 is partly based on the famous Israeli Galil rifle and is still in service in all the branches of the South African Defence Force.