The Excalibur Diablo 18" Carbon Matrix Crossbow Arrows 3pk 22DV18IL-3 are designed for maximum reliability and performance with Excalibur’s Matrix Series Crossbows. These 18" carbon arrows feature a flatback insert for more reliable string contact and 2" Blazer vanes with a 3-degree offset for superior accuracy. The factory-installed illuminated Beacon Nocks enhance visibility, making it easier to track your shots. With a weight of 250 grains and a straightness tolerance of .003, these arrows deliver consistent performance, making them an excellent choice for serious crossbow hunters. Excalibur Diablo 18" Carbon Matrix Crossbow Arrows 3pk 22DV18IL-3