Carbon Express D-Stroyer 380 Crossbolt Moon Nock 36 Pk Black. It provides Dual Spine Weight Forward Technology for ultimate down-range accuracy plus BuffTuff exterior on the front 2/3rds that adds superior strength and consistency. Maximize the most speed and accuracy out of your crossbow with the D-Stroyer 380 Crossbolt. Specifications for Carbon Express D-Stroyer 380 Crossbolt: Manufacturer: Carbon Express Color: Black Features of Carbon Express D-Stroyer 380 Crossbolt: The lightest and fastest bolt in the Carbon Express lineup Dual Spine Weight Forward Technology BuffTuff exterior Package Contents: Carbon Express D-Stroyer 380 Crossbolt Carbon Express 52540: D-Stroyer 380 Crossbolt Moon Nock 36 Pk Black