Crossbow bolt having a rear deployable cutter device and practice bolt for simulating the same

摘要

An arrow having a forward portion and an aft portion. The aft portion includes a necked down region having a diameter less than the diameter of the frontal portion. A cutter device includes one or more blades and is mountable along the necked down region of the aft portion. A tube having a plurality of vanes is disposed over the blades during arrow flight and is slidable rearward to allow the blades to deploy outward upon engagement of the vanes with a target.