Lego minifigure compatible Custom SI-Dan Toys Kalashnikov automatic rifle model 1974 or AKS-74U bridges the tactical deployment gap between a submachine gun and an assault rifle. It was intended for use mainly with special forces, airborne infantry, rear-echelon support units, helicopter and armored vehicle crews. AK74u Assault rifle is highly detailed compact weapon and with its small stock fits neatly into a minifigs arm.