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Icon-w.png This article is about a/an weapon in Kamen Rider W.

"Trigger Maximum Drive!"
―Finisher announcement[src]

The Trigger Magnum (トリガーマグナム Torigā Magunamu) is a firearm used by Kamen Rider Double when he assumes any form that uses the Trigger Memory. It first appears in episode 5.


Trigger Magnum can also combine with Double's Memory Gadgets as well.

Finishing attacks

When the Trigger Memory is placed into the the Trigger Magnum's Maximum Slot and it shifts from Normal Mode (ノーマルモード Nōmaru Mōdo) to Maximum Mode (マキシマムモード Makishimamu Mōdo), Double can execute one of three different Rider Shooting Maximum Drive finishers depending on his current form.

  • LunaTrigger - Trigger Full Burst (トリガーフルバースト Torigā Furu Bāsuto): Double fires multiple charged homing shots at the enemy.
  • HeatTrigger - Trigger Explosion (トリガーエクスプロージョン Torigā Ekusupurōjon): Double fires a single constant stream of fire that completely vaporizes the enemy.
  • CycloneTrigger - Trigger Aerobuster (トリガーエアロバスター Torigā Earobasutā): Double fires multiple shots of pressurized air at the enemy. However, Double inserted the Cyclone Memory into Trigger Magnum instead of using Trigger Memory by activating the finisher.

When Stag Phone attaches to the Trigger Magnum, it allows Double to perform the Trigger Stag Burst (トリガースタッグバースト Torigā Sutaggu Bāsuto) Maximum Drive, crushing the Dopant between two pincer-like energy projections shot from the Trigger Magnum.

When Bat Shot attaches to the Trigger Magnum, it allows Kamen Rider Double to perform the Trigger Bat Shooting (トリガーバットシューティング Torigā Batto Shūtingu) Maximum Drive, locking onto the target through the Bat Shot and then firing a concentrated blast from the Trigger Magnum with pinpoint precision.

Despite the strain on the user's body, the output of the finisher can be enhanced by activating a Twin Maximum Drive with both the Driver and Trigger Magnum. The only known example occurred when Shotaro made a dangerous gambit by placing the Heat Memory in the Driver's Maximum Slot(with Philip trying to prevent it), augmenting the Trigger Magnum's already active Maximum Drive, launching a massive ball of fire generated from the weapon.

Arms Weapon

The Trigger Magnum is the Arms Weapon wielded by either an Armored Rider or a New Generation Rider when they transform into W Arms.


The Trigger Magnum is also among the various Rider Weapons used by Ganbarider in Kamen Rider Battle: Ganbarizing.


  • In Kamen Rider W Forever: A to Z/The Gaia Memories of Fate, the finisher of CycloneTrigger, Trigger Aerobuster, Double inserts the Cyclone Memory in the Trigger Magnum instead of using the Trigger Memory.
  • Strangely, Ryugen uses the Trigger Magnum with the Joker half of W Arms, even though the Trigger Magnum is exclusive to the Trigger half.
    • However, Ryugen's main weapon is his Budou Ryuhou while Double uses no weapons as CycloneJoker, so this could have been done as a means of compensation.
    • The same goes true with the Metal Shaft, as shown with Kamen Rider Specter in Double Damashii in the Kamen Rider 1 movie, he is seen using said weapon even though it's exclusive to the Metal half, with the standard weapon of Specter being similar to the Metal Shaft displaying the same compensation as the Arms.


See also

Icon-w.png Kamen Rider W
Narumi Detective Agency
Shotaro Hidari - Philip - Akiko Narumi - Sokichi Narumi† - Tokime
Memory Drivers
Double Driver - Accel Driver - Lost Driver
Gaia Memory-related
Gaia Memories - Memory Gadgets - Fang Memory - Xtreme Memory - Trial Memory - Gaia Memory Enhancing Adapter
Metal Shaft - Trigger Magnum - Engine Blade - Skull Magnum - Prism Bicker - Eternal Edge - Shroud Magnum
RevolGarry - HardBoilder - Gunner A - Diablossa - SkullBoilder - SkullGarry - HardMammother
The Fuuto Irregulars
Santa-chan - Watcherman- Queen & Elizabeth - Isamu Bito
Futo Police Department
Ryu Terui - Mikio Jinno - Shun Makura
Museum and the Dopants
Foundation X
The Sonozaki Family: Terror - Claydoll - Taboo/R Nasca - Nasca - Smilodon - Masquerade Dopants
Dopants: Magma Dopant - T-Rex Dopant - Money Dopant - Anomalocaris Dopant - Cockroach Dopant - Sweets Dopant - Virus Dopant - Violence Dopant - Arms Dopant - Bird Dopant - Ice Age Dopant - Triceratops Dopant - Liar Dopant - Puppeteer Dopant - Invisible Dopant - Nightmare Dopant - Beast Dopant - Zone Dopant - Yesterday Dopant - Quetzalcoatlus Dopant - Gene Dopant - Jewel Dopant - Old Dopant - Utopia Dopant - Energy Dopant
Movie Exclusive Villains: Dummy Dopant - Heat Dopant - Trigger Dopant - Metal Dopant - Luna Dopant - Cyclone Dopant - Bat Dopant - Spider Dopant - Kamen Rider Eternal - Commander Dopant - Eyes Dopant
Novel-Exclusive Villains (The One Who Continues After Z): Zoo Dopant - Zero Dopant - Queen Bee Dopant - Flower Dopant - Elephant Dopant - Dolphin Dopant - Salamander Dopant - Fish Dopant - Bird Dopant - Ape Dopant - Bee Dopants
Manga Exclusive Villains (Futo Detective): Road Dopant - Aurora Dopant - Meganeura Dopant -Brachiosaurus Dopant - Scream Dopant - Alcohol Dopant - Puzzle Dopant - Reactor Dopant - Antlion Dopant - Owl Dopant - Trash Dopant - Caracal Dopant - Toadstool Dopant
Yukiji Bando - Kazuha - Hideo - Mamoru Nikaido - Sabu
Katsumi Daido - Maria S. Cranberry - Reika Hanehara - Kyosui Izumi - Gozo Domoto - Ken Ashihara