Senriku

The Senriku is a rifle used by Van Augur. It is an extra long rifle with a cross-hair at the middle and the end of the rifle. The barrel end has a horn-shaped design. The name of this weapon comes from a databook. Though interestingly, the end of the barrel being in the funnel shape as seen in this picture, would render the cross-hairs useless.

Abilities
The Senriku is capable of shooting down targets at an extremely far range. Combined with Auger's incredible eyesight, he can shoot down seagulls from Jaya at a distance where it was impossible to see the island. Also, Auger is capable of rapid firing, as seen when he shot Portgas D. Ace rapidly.