The B-10 recoilless rifle (Bezotkatnojie orudie-10, known as the RG82 in East Germany)[8] is a Soviet 82 mm smoothbore recoilless gun. It could be carried on the rear of a BTR-50 armoured personnel carrier. It was a development of the earlier SPG-82, and entered Soviet service during 1954. It was phased out of service in the Soviet Army in the 1960s and replaced by the SPG-9, remaining in service with parachute units at least until the 1980s. Although now obsolete it was used by a large number of countries during the Cold War.[9][10]