The durable black composite stock is now paired with a tough Cerakote finish on the receiver and barrel. It looks tough and it is. The SX4 is built on the bulletproof Active Valve System. Everything is made to work and last. It has a solid operating mechanism, improved balance, larger controls, and ultra-durable internal operating components. Ask any SX4 owner for what they think. It works and works hard. FeaturesDrop-Out Trigger GroupSpring-Loaded EjectorOversized Bolt Release ButtonReversible SafetyTRUGLO Fiber Optic BeadCerakote Receiver and Barrel