Shikindan

is a large, comparable in size to the swords of the Seven Ninja Swordsmen of the Mist. It is described as a weapon that can "kill with one shot", earning it the title of the.

History
The rifle Kaojashin was created in the village of Kumogakure, with the intention that it would be used alongside a certain Hiden technique. Upon his defection from the village, Sabui stole the rifle — along with the secret technique — and began to use it; this event marked him as a criminal in his home village.

Appearance
Sabui's weapon takes the form of a large black rifle, which he carries on his back, attached to his. Its forestock is mostly covered in white fur, except for a section on the underside near the end of the forestock. The end of the long barrel has a black, cross-shaped extension on it, and the stock is composed of two long, triangular protrusions that stabilize the rifle against Sabui's shoulder and torso.

Abilities
Kaojashin is a. Instead, it absorbs the user's chakra and crafts bullets which assume the properties of its user's chakra affinity. Sabui, who has a Lightning Release affinity, then, can use bullets imbued with the super-piercing properties of lightning chakra.

Trivia

 * The kanji for can both refer to a gunshot to the head, as well as a "head shot" in photography.