Century Arms’s heavy-duty AK rifle, the VSKA (vis-kuh) has been re-engineered with critical components using machined S7 tool steel. The VSKA rifle features a bolt carrier, front trunnion, and feed ramp machined from S7 tool steel and specially heat-treated for maximum durability. The front trunnion and bolt are machined from billet and exceeded the durability goals for the project. Additionally, the Century Arms VSKA AK47 features a carburized 4140 steel bolt, a chrome-moly 4150 barrel, and sports the RAK-1 Enhanced Trigger Group for an impressive trigger pull.