| 摘要 |
A projectile comprising a shaft hollowed at one end with a male thread at the outer, or head, end. A plurality of fins are secured around the circumference adjacent the first shaft end or base, the fins being slightly canted to cause the projectile to spin as it leaves the launcher. A soft foam head is attached to the threaded end of the shaft. In a first embodiment, a hollow tip is removably attached to the head; in an alternate embodiment, the removable tip is made of a solid foam material.
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