Automatic Safety Mechanism The Breaker 80 lb. full metal pistol grip crossbow features an easy cocking lever which allows many bolts to be fired in a short amount of time. It shoots aluminum bolts over 160 FPS. The automatic safety mechanism helps prevent dry fires while the adjustable sights allow for extreme accuracy. The crossbow comes with three aluminum bolts and a paper target. For use with BOLT Crossbows® bolts.