The Night Fury extreme features a blade containment system that ensures deadly field-point accuracy. Upon impact, its 2-curved, cross-opening blades deploy instantly, creating a substantial cutting diameter of 2-1/4 inches. This design eliminates the need for rubber bands or O-rings, minimizing energy loss and enhancing the impact's effectiveness. The mechanical blades are crafted from 420 stainless steel, while the ferrule is made from durable 7075 aircraft aluminum. The integrated chisel tip and Patented Blade Retention System ensure the blades remain closed until entry, providing true field-point accuracy. This product is specifically designed for use with compound bows and crossbows. Mechanical blades with a cutting diameter of 2-1/4 inches Chisel tip with integrated design Blades made from 420 stainless steel 7075 aerospace-grade aluminum ferrule The Blade Retention System, protected by patent, ensures that blades remain closed until they are needed for use Excludes rubber bands and O-rings Precise field point accuracy Compatible with compound bows and crossbows