Gimlet

The  is a Border Trigger, and a hybrid of two Asteroid`s.

Abilities
The Gimlet is created by combining two Asteroid`s Trion cubes. It as enhanced Armor-Penetration abilities capable of breaking the rabbits armor when used by a skillful shooter.

Large-Scale Invasion Arc
It was first seen used by Izumi to intercept a Rabbit from attacking Osamu and Chika.

B-Rank Rank Battles Arc
During Galopoula's Invasion, Ninomiya uses it to destroy Idra's combined shield.

Trivia

 * Gimlet's name seems to come from the drilling tool.