This version of the Tru Fire Switchblade is for bows shooting under 310 feet per second. Tru Fire has taken their vast experience in the mechanical release market and designed a mechanical broadhead that combines the advantages of a fixed with that of a mechanical broadhead into what is called the Switchblade. The Switchblade does not use any O-rings or rubber bands and yet it has rear deployable blades. Rear deployable blades means less kinetic energy is used to open the blades verses conventional “flip back” mechanical designs. The Switchblade will open on impact and stay open throughout the target. When the tip of the Switchblade makes contact with the target, the blades open up simultaneously. Because the blades are rear deployed, angled shots are no problem for the Switchblade. When the blades are in the open condition, they are locked in place. To close the blades, simply pull the tip and all three blades close down without your fingers ever touching a blade. No more having to worry about O-rings or rubber bands dry rotting and not holding your blades properly or even prematurely releasing one blade during flight which will cause massive erratic arrow flight. The Switchblade is truly mechanical.