A crossbow and bolts are described herein. The crossbow may include a main frame defining a groove, a top limb, a bottom limb, a string and a trigger assembly. The top limb may extend in front of the main frame and be positioned above the lower limb. The string may be configured to be cocked backwards and engage with the trigger assembly. A bolt may be configured to attach to the string and be ejected from the crossbow when the trigger assembly is fired. The bolt may include a removable tip, a removable coupling, and a snap-on fletching. The crossbow may include a worm gear assembly to cock the string for firing.