Killer Instinct HYPR-V Lighted Crossbow Bolts are built for crossbow hunters who want a visible shot path and a precisely matched replacement bolt for compatible Killer Instinct equipment. This package contains three 20-inch carbon bolts equipped with preinstalled red lighted V-Track nocks. The illuminated nocks make the bolts easier to follow during a shot and can help with locating the bolt afterward, particularly when hunting in dim conditions. Killer Instinct's V-Track nock configuration is designed to improve contact between the nock and crossbow string while helping reduce wear on the center serving. It is especially suited to the company's narrow axle-to-axle crossbow designs. Each HYPR-V bolt weighs 390 grains when fitted with the specified 100-grain point and is manufactured to a straightness tolerance of plus or minus 0.003 inch. The 0.300-inch inner diameter and three-inch vanes complete a hunting-oriented configuration intended to provide consistent fit and flight. These bolts are compatible with current and past Killer Instinct crossbow models except the SWAT XP and Furious Pro 9.5, which require a different bolt configuration. The three-pack provides a practical supply for replacing damaged bolts, preparing a hunting quiver, or keeping matched spares available at the range. Because crossbow bolt length, nock style, weight, and crossbow compatibility directly affect safe operation, users should confirm their crossbow's requirements before loading or firing. Broadheads or field points should also match the crossbow manufacturer's recommendations. With carbon construction, controlled straightness, lighted nocks, and the updated V-Track interface, this exact HYPR-V configuration combines the essential specifications needed for hunting and target practice with compatible Killer Instinct crossbows.Specifications and Features: 20-inch carbon crossbow bolts Preinstalled red lighted V-Track nocks V-Track design improves string contact and reduces serving wear 390 grains each with 100-grain point 0.003-inch straightness tolerance 0.300-inch inner diameter 3-inch vanes Compatible with current and past Killer Instinct crossbows except SWAT XP and Furious Pro 9.5 Quantity: 3 Color: Black/White/Red Brand: Killer Instinct Series: HYPR-V Product Type: Crossbow Bolts Manufacturer Part Number: 4064-3 UPC: 850042815410