Century Arms introduces its newest heavy duty AK pistol, the VSKA (vis-kuh). Re-engineered with critical components using machined S7 tool steel, a material so highly regarded for it's ability to withstand heavy duty action that it's used in excavator teeth and jackhammer tips! The VSKA pistol features an all new bolt carrier, front trunnion, and feed ramp machined from S7 tool steel and specially heat treated for maximum durability. S7, often referred to as a "Shock-Resisting Tool Steel," is commonly used for tools like chisels and jackhammer tips as it has maximum shock resistance and high compression strength, while retaining toughness.