The VSKA SYNTHETIC comes to us as a unique addition to our family. Constructed with the same materials as the standard VSKA; an all-new bolt carrier front trunnion and feed ramp machined from S7 tool steel and uniquely 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. A carburized 4140 steel bolt a chrome-moly 4150 barrel and the RAK-1 Enhanced Trigger Group are some of the standard features of this rifle; Uniquely sporting a Black Synthetic Polymer Stock and Fore-End for a lighter-weight and a modern look!