Allen Cases Crossbow One Time Use Decocking Bolt Allen, a trusted manufacturer in Crossbow accessories has engineered a durable, decocking, fiberglass crossbow bolt used for discharging a crossbow. Designed to be fired into the ground or a foam target. Reusable, but inspect carefully for damage. Engineered with an integral half moon nock and heavy enough to be used with most crossbows. Comes with a heavy metal blunt tip and contains 5 bolts per pack.