In the never-ending quest for superior speed and rifle-like accuracy, Ravin has reached a new pinnacle. The sheer power of the Ravin R20 crossbow comes from a brilliant enhancement to HeliCoil Technology a 13-inch power stroke that produces 430 FPS and 164 foot pounds of kinetic energy. As with other Ravins this crossbow comes fully assembled and pre-tuned so that you can practice your aim straight out of the box without wasting any time with complicated assembly or tuning. To protect you and the quality of your weapon, this Ravin R20 Crossbow features anti-dry fire and auto safety mechanisms. For ease of comfort you can also use the built-in sling mounts to attach a Ravin Backpack or Shoulder sling. So get out there and experience bow-hunting with a premium Ravin crossbow.