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25mm Twin Autocannon Mount

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No.39 25mm連装機銃
GreenGunMG.png Anti-Aircraft Gun
Effects: AA+5 Evasion+1
Scrap value: Ammo 2 Steel 1 (Buildable)

Equipment Card 25mm Twin Autocannon Mount.png

Equipment Character 25mm Twin Autocannon Mount.png

Equipment Item 25mm Twin Autocannon Mount.png

Equipment Full 25mm Twin Autocannon Mount.png

Refittable Ship Types
Fast Battleship Battleship
Aviation Battleship Standard Aircraft Carrier
Armored Carrier Light Carrier
Heavy Cruiser Aviation Cruiser
Light Cruiser Torpedo Cruiser
Training Cruiser Destroyer
Coastal Defense Ship Submarine
Aircraft Carrying Submarine Seaplane Tender
Fleet Oiler Submarine Tender
Repair Ship Amphibious Assault Ship



This is a standard anti-aircraft machine gun armament.
Domestically produced based on a French 25 mm cannon, it is a twin-mounted high-angle 25 mm machine gun.
The twin type was the standard anti-aircraft equipment, but it was updated to the more powerful triple-barrel type where space and circumstances allowed.


Anti-Aircraft Gun AA Guns are equippable in RE. They are mainly used to provide "Anti-Air", notably via their AA Anti-Air stat. They:

  • Are notably required in most AACI.
  • Trigger a tracer-fire effect during air combat.
  • Bring an accuracy bonus against PT boats.


How To Obtain


Base craft recipe Fuel10 Ammunition20 Steel10 Bauxite10 HeavyDoes NOT include CAV/BBV
Ships with special crafting will have
reduced rates of other specific equipment
Secretary: Category Heavy
Ship Types included:

Stock equipment of: Akashi KaiAkashi Kai, AkashiAkashi, AkigumoAkigumo, AkishimoAkishimo, Akitsu MaruAkitsu Maru, AkitsushimaAkitsushima, AkizukiAkizuki, Amagiri KaiAmagiri Kai, Aoba KaiAoba Kai, Ariake KaiAriake Kai, Chitose Kou Kai NiChitose Kou Kai Ni, Chiyoda Kou Kai NiChiyoda Kou Kai Ni, Chougei KaiChougei Kai, DaitouDaitou, Etorofu KaiEtorofu Kai, EtorofuEtorofu, Fujinami KaiFujinami Kai, FujinamiFujinami, FukaeFukae, HachijouHachijou, HagikazeHagikaze, Hamanami KaiHamanami Kai, HamanamiHamanami, Harukaze KaiHarukaze Kai, Hatsuharu KaiHatsuharu Kai, HatsukazeHatsukaze, Hatsushimo KaiHatsushimo Kai, HayanamiHayanami, HayashimoHayashimo, HiburiHiburi, HiratoHirato, IshigakiIshigaki, Jingei KaiJingei Kai, Kako Kai NiKako Kai Ni, KatoriKatori, Katsuragi KaiKatsuragi Kai, KatsuragiKatsuragi, KazagumoKazagumo, Kinu KaiKinu Kai, Kinugasa KaiKinugasa Kai, KishinamiKishinami, KiyoshimoKiyoshimo, KunashiriKunashiri, MaikazeMaikaze, MakigumoMakigumo, Makinami KaiMakinami Kai, MakinamiMakinami, Matsuwa KaiMatsuwa Kai, MatsuwaMatsuwa, MikuraMikura, Mizuho KaiMizuho Kai, Naganami Kai NiNaganami Kai Ni, NaganamiNaganami, Nenohi KaiNenohi Kai, OkinamiOkinami, Ryuujou Kai NiRyuujou Kai Ni, Sado KaiSado Kai, SadoSado, Shimushu KaiShimushu Kai, ShimushuShimushu, Suzunami KaiSuzunami Kai, SuzunamiSuzunami, TakanamiTakanami, Tanikaze D KaiTanikaze D Kai (★+4), TeruzukiTeruzuki, TsushimaTsushima, Uranami KaiUranami Kai, Ushio Kai NiUshio Kai Ni, Uzuki KaiUzuki Kai, Wakaba KaiWakaba Kai, YashiroYashiro, YuugumoYuugumo, Hayashio KaiHayashio Kai (★+4), Yuugure KaiYuugure Kai (x2), InagiInagi, Heian Maru KaiHeian Maru Kai, NoumiNoumi

Upgradeable from: 25mm Single Autocannon Mount25mm Single Autocannon Mount (★+5)

From quest: Cs5 (x2, choice), Cy13 (x2, choice)

From limited-time quests: 2102 LQ1 (x2, choice)

Ranking reward for:

  • May 2013: 海上護衛総隊
  • Jun 2013: 海上護衛総隊


Used to improve: 25mm Twin Autocannon Mount25mm Twin Autocannon Mount, Bi Type 40mm Twin Autocannon MountBi Type 40mm Twin Autocannon Mount, 381mm/50 Triple Gun Mount381mm/50 Triple Gun Mount

Used by quest: F42

Updates History

  • 2013-04-23: Implemented with initial game release
  • 2014-09-12: Stats increased: Anti-Air+4 Evasion+0 → Anti-Air+5 Evasion+1
  • 2014-11-14: Became improvable and upgradeable to 25mm Triple Autocannon Mount25mm Triple Autocannon Mount
  • 2016-12-22: Became possible to equip in expansion slots

Fit Bonuses

25mm Twin Autocannon Mount Equipment Bonuses
Ship Extra Requirement Firepower Torpedo Attack Anti-Air Anti-Submarine Warfare Line of Sight Armor Accuracy Evasion Note
- +1 +2 +2
+ Air Radar +2 +2 One-time[1]
Inagi Kai NiInagi Kai Ni (★0-7) +2 +3
(★8) +2 +4
(★9) +4 +4
(★MAX) +1 +4 +4
Yahagi Kai Ni BYahagi Kai Ni B - +3 +2
Noshiro Kai NiNoshiro Kai Ni
Yahagi Kai NiYahagi Kai Ni
- +2 +1


GreenGunMG.png 25mm Twin Autocannon Mount

Improvement Conversion
★ Improvement
0~5 6~9
Equipment Card 25mm Triple Autocannon Mount.png
25mm Triple Autocannon Mount
Development material Consumed 0/1 1/2 2/3
Improvement material Consumed 1/1 1/2 1/2
- Equipment Card 25mm Twin Autocannon Mount.png Equipment Card 25mm Twin Autocannon Mount.png
- -
Resources Fuel0 Ammunition20 Steel10 Bauxite10
Ship Helper Conversion
Ship Banner Satsuki.png
Equipment Card 25mm Triple Autocannon Mount.png
25mm Triple Autocannon Mount
Mon Tue Wed Thu Fri Sat Sun
Ship Banner Fumizuki.png
Mon Tue Wed Thu Fri Sat Sun
Ship Banner Isuzu Kai Ni.png
Isuzu Kai Ni
Mon Tue Wed Thu Fri Sat Sun
Ship Banner Kinu.png
Mon Tue Wed Thu Fri Sat Sun
Ship Banner Inagi.png
Mon Tue Wed Thu Fri Sat Sun
Improvement Improved effects
Anti-Aircraft Gun 1★ 2★ 3★ 4★ 5★ 6★ 7★ 8★ 9★ Max★
Firepower 1.00 1.41 1.73 2.00 2.23 2.44 2.64 2.82 3.00 3.16
Torpedo Attack 1.2 1.69 2.07 2.40 2.68 2.93 3.17 3.39 3.60 3.79
[math]\displaystyle{ \text{AdjAA}_\text{ship} }[/math] 4.00 5.66 6.93 8.00 8.94 9.80 10.58 11.31 12.00 12.65
Accuracy Torpedo 2.00 2.82 3.46 4.00 4.47 4.89 5.29 5.65 6.00 6.32

See Also