The Killer Instinct Vital-X 405 Crossbow Kit delivers high-performance accuracy with a compact, maneuverable frame perfect for tight shooting situations. Featuring the synchronized X Cam system with an impressive 56 percent let-off, it reduces draw effort while enhancing shot smoothness and minimizing vibration. Clocking in at 405 feet per second with 142 foot-pounds of kinetic energy, this crossbow is both powerful and efficient. Measuring just 6.75 inches axle-to-axle when cocked, the Vital-X is easy to shoulder and shoot in any environment. The included DSC Silent Crank makes cocking nearly effortless and whisper-quiet. The complete Pro Package equips you with everything you need, including a Lumix 4×32 scope, quiver, HYPR bolts, and more.