No shield, no problem!

Sumiharu Inukai, after his captain breaks the Idras' Shield with Gimlet.[1]


Izumi Gimlet

Gimlet (Ninomiya)

Kanji 徹甲弾
Rōmaji Gimuretto
Organization BrDr Border
Type White trion Normal (Composite Bullet)
Classification GU Gunner (Gunner + Gunner)
- Enhanced penetrative power
First Appearance
Manga Chapter 68
Anime Episode 30

Gimlet (徹甲弾(ギムレット) Gimuretto?, lit. Armor-Piercing Bullet) is a Border Trigger, and the composite bullet created through the combination of two Asteroids.[3]


Unlike Asteroid bullets, which appear as lines, Gimlet projectiles are vaguely ellipsoidal in shape, with a short, luminous tail and thin circles surrounding them. When used by a Shooter, their size depends on their number and the trion capacity of the user.


Since composite bullets were created by Kōhei Izumi,[4] Gimlet could not have existed until three years prior to Yūma's enlistment in Border.[5]


As the combination of two Asteroid cubes, a Gimlet bullet is made out of twice the trion of an Asteroid one, which grants it enhanced penetration abilities. It is used to breach sturdy Shields or firm armor as well as to inflict damage.[6] Thanks to their extraordinarily high trion levels, Izumi and Ninomiya can create Gimlet bullets so powerful they can break the armor of Rabbit,[3] which is capable of deflecting an Ibis blast,[7] and the combined shield of four Idras,[1] previously shown to be able to withstand multiple shots from Sniper Triggers.[8]

As a composite bullet, Gimlet is very powerful, but, when used by Shooters, it requires times and focus to be created, rendering the user vulnerable in the process, so it cannot be used uniformly.[9] The time necessary to merge the two trion cubes ranges from one minute for inexperienced users to a mere two seconds for masters.[10]


See also: Gimlet Users

The only known users of this composite bullet are two top-tier Shooters, Kōhei Izumi[3] and Masataka Ninomiya.[1]


  • Like many other Gunner Triggers, Gimlet may be named after a missile: the SA-16 Gimlet, an early version of the 9K38 Igla. Alternatively, it may be derived from the homonymous rocket.
    • A gimlet is also a drilling tool.



e - d - vBorder Triggers
Basic Equipment Bail OutRadarTrion Body
Attacker Kogetsu (Kogetsu: Spear) • Raygust (Shield Mode) • ScorpionSōgetsu (Axe)
Gunner Asteroid • Cobra • Gimlet • Hornet • HoundMeteorSalamanderTomahawkViper
Firearms Assault Rifle • Grenade Launcher • Handgun • Minigun • Shotgun
Sniper EagletIbisLightning
Defense EscudoShield (Affixed Mode/Full Guard)
Trap Switchbox
Optional Bagworm • Bagworm Tag • ChameleonConnector • Dummy Beacon • Enhanced Radar • Full ArmsGeistGen'yōGrasshopperIdatenLead Bullet • Makō • Senkū • Silencer • SpiderStarmakerTeleporterThruster • Timer
Prototypes Connector • Dummy Beacon • Full ArmsGeistIdaten • Makō • Teleporter • Timer
Black Fūjin • Tsukihiko Amō's Black Trigger • Yūma Kuga's Black Trigger

Start a Discussion Discussions about Gimlet

  • World Trigger "allowed" Triggers?

    10 messages
    • To vanquish all lingering doubts: more important than the matter of customization, the Triggers T-2 is not allowed to participate in rank wars ...
    • I also doubt that they would care. Even Mr. Shinoda (I think that's what he's called) called them the most powerful squad in bord...
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