Daidaimaru

"Soiya! (Fresh) Orange Squash/Au Lait/Sparking!"

- Finisher announcement via Gaim's Sengoku Driver

"Darkness Squash/Au Lait!"

- Finisher announcement via Jam's Sengoku Driver

"Lock On! 1, 10, 100, 1,000, 10,000! (Blood) Orange Charge!"

- Naginata Mode's finisher announcement via Musou Saber

The Daidaimaru (大橙丸) is the Armored Rider Arms Weapon granted either by accessing Orange Arms or via the summoning ability of Kiwami Arms. It is a sword with the blade looking like a slice of an orange.

Known Users

 * Armored Rider Gaim
 * Kouta Kazuraba
 * Orange Arms (Wizard 52-53, Episodes 1-9, Sengoku Movie Battle, 10-24, ToQger Vs. Gaim, Kamen Rider Taisen, 25-30, 34-36, The Golden Fruit Cup!, 38-39, 44-47, Movie War Full Throttle)
 * Fresh Orange Arms (Fresh Orange Arms is Born!)
 * Kiwami Arms (Episodes 32-33, 37, 40, 46-47)
 * Yuya Sumii (Episode 40)
 * Mitsuzane Kureshima (Episode 47) - borrowed from Kouta (in his Kiwami Arms) in the final battle against Kougane as Armored Rider Jam.
 * Armored Rider Jam (Episode 47)
 * Bujin Rider Gaim (Blood Orange Arms) (Sengoku Movie Battle)
 * Kamen Rider Fifteen (Gaim Arms) (Kamen Rider Taisen)

Combinations
The Daidaimaru can combine with the Musou Saber for the more powerful Naginata Mode (ナギナタモード). Naginata Mode can also combine with the DJ Gun to create the stronger Sojinto Mode (双刃刀モード), though this has yet to be used in the series.

Finishing attacks

 * Daidai Ittou (大橙一刀): After Gaim or Fifteen activate a function on their Sengoku Driver, they charge the Daidaimaru with energy before unleashing a series of slashes on the target.
 * Orange Squash (オレンジスカッシュ)
 * Gaim Au Lait (鎧武オーレ)
 * Naginata Musou Slicer (ナギナタ無双スライサー): By inserting either the Orange Lockseed or Blood Orange Lockseed into the Daidaimaru Naginata Mode's Drive Launch and locking it in place, Gaim or Bujin Gaim can execute a variation of this attack.
 * Orange Charge (オレンジチャージ): Gaim fires energy slashes from the Musou Saber end at the enemy, trapping them in an orange sphere. Afterwards, he charges the Daidaimaru end with energy before slashing the enemy with it. The Orange Charge has two variations for close-quarters combat; a multiple slash version for separate targets and a 360 degree turn slash version that forms orange slices on contact with the target.
 * Blood Orange Charge (ブラッドオレンジチャージ): Bujin Gaim charges the Daidaimaru end with energy before he slashes the enemy with it. The Blood Orange Charge has two variations; a straight slash version for a single target and a circle slash version for multiple targets.
 * Fresh Orange Au Lait (フレッシュオレンジオーレ): TBA
 * Fresh Orange Sparking (フレッシュオレンジスパーキング): TBA
 * Darkness Squash (ダークネススカッシュ): Jam summons up to 15 energy apples, then slashes an energized Dark Daidaimaru to send them flying so as to bombard the enemy.
 * Darkness Au Lait (ダークネスオーレ): Jam summons a bigger energy apple, then jabs the Dark Daidaimaru into it, sending it flying at the enemy.

Other versions

 * A red version of the Daidaimaru is wielded by Kamen Rider Bujin Gaim while in Blood Orange Arms.
 * Two Daidaimarus are the weapons of choice for Kamen Rider Gaim when using Fresh Orange Arms.
 * The Daidaimaru is wielded by Kamen Rider Fifteen when he assumes Gaim Arms via the Heisei Rider Lockseed.
 * A pink version of the Daidaimaru known as the Dark Daidaimaru (ダーク大橙丸) is wielded by Kamen Rider Jam while in Darkness Arms.