The Diesel X features the patented, fully synchronized X Cam system which requires less effort to draw than most crossbows with its impressive 50% let-off design. X Cam also produces a crossbow system that shoots quieter with less vibration for the ultimate hunting crossbow. The Diesel X measures only 6.25 inches axle-to-axle when cocked, making it very comfortable to shoulder. Includes the Killer Instinct Elite Package with a Speed Ring scope, quiver, premium bolts and everything needed to start shooting.