The Quad 400 is a powerhouse with a patented high-density gas assist stock and a thumbhole grip. Thes lightweight stock allows for an optional crank cocking device to be easily installed under the contoured cheek pieces. AVi technology reduces vibrations through the crossbow, and noise by up to 30%. The ADF (Anti Dry Fire) trigger system has a spring-loaded redundant safety bar that remains in place until the arrow is seated properly. These perfectly balanced, lightweight, more comfortable, extremely powerful bows feature the Crosswire string and cable system. It has AVi limbs, bolt retainer and foot stirrups. Additional features are GAM composite stock, 3.5lb trigger pull, CNC Cams and a red dot scope.