The real steel AKS-74U (Avtomat Kalashnikova Skladnoi 1974 Ukorotshjennyi) was introduced by the Russia Tula Arsenal. It is the compact version of the AK-74 as the barrel is significantly shorter and equipped with the folding stock for ease to mount and dismount. The Front sight and rear sight radius was reduced due to the short barrel. The muzzle brake was improved from the full size version to reduce muzzle flash. The AKS-74U was intended as a personal defense weapon (PDW) for tank, helicopter and other vehicle crews as well as the famous KGB, paratroopers, special forces operators where operations are usually in urban area and comfined spaces but fire power of an assault rifle is needed.