The Bloodsport Nitefall is designed for use with compound bows and crossbows. A large triangular blade flanked by two razor-sharp mechanicals folds into a hardened chisel-tip ferrule for in-flight precision. The unforgiving blades immediately open on impact to create a menacing cutting force that spans 2" in diameter. The construction of the Nitefall places these blades behind the point, providing increased flight accuracy and greater penetration. Blades are 416 stainless steel. No rubber bands or O-rings. Patent-pending lock holds blades in open or closed position.