The VX100 series is all about performance without the cost. The Spartan air rifles come with a precision rifled barrel, metal front sight, precision adjustable rear sight and automatic safety. In addition to these robust features of the Spartan model, the Spartan Mark 2 brings in an enhanced stock and trigger. The product built on the idea to bring the proven features and precision capabilities of Precihole Sports products without being heavy on the pocket. The Spartan mark 2 is a real bargain!