Brand new, never used genuine Kingman Spyder replacement aluminum turbulence bolt. Fits the Spyder Victor II, Imagine, Espirit and other models with dual slotted holes which use a mid-cocking bolt (NOT rear cocking or side cocking). Features a six-hole insert which povides the "turbulence" venturi effect for increased accuracy and distance. Aluminum construction. O-rings and cocking lug are installed. 5.5in overall