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20.3cm (No.2) Twin Gun Mount

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No.90 20.3cm(2号)連装砲
RedGunMedium.png Medium Caliber Main Gun
Effects: Firepower+9 AA+3 Accuracy+1 RangeMedium
Scrap value: Ammo 3 Steel 4 (Buildable)

Equipment Card 20.3cm (No.2) Twin Gun Mount.png

Equipment Character 20.3cm (No.2) Twin Gun Mount.png

Equipment Item 20.3cm (No.2) Twin Gun Mount.png

Equipment Full 20.3cm (No.2) Twin Gun Mount.png

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



The no.2 twin gun is a slightly upgraded version of the 20.3cm twin gun.
The excellent heavy cruiser main guns were upgraded and used as the main guns of the Myoukou-class.
Other heavy cruisers had their early-model guns eventually replaced with this one during their modernisations.


How To Obtain


Stock equipment of Ashigara Kai NiAshigara Kai Ni (x3), Choukai Kai NiChoukai Kai Ni, Furutaka Kai NiFurutaka Kai Ni (x2), Haguro Kai NiHaguro Kai Ni (x2), Kako Kai NiKako Kai Ni (x2), Maya Kai NiMaya Kai Ni, Myoukou Kai NiMyoukou Kai Ni (x2), Nachi Kai NiNachi Kai Ni (x2)

Upgradeable from 20.3cm Twin Gun Mount20.3cm Twin Gun Mount

From quests: By4 (x2, choice)

Updates History

  • 2014-05-23: Implemented
  • 2014-10-24: Stats increased: Firepower+8 → Firepower+9 , became improvable and upgradeable to 20.3cm (No.3) Twin Gun Mount20.3cm (No.3) Twin Gun Mount
  • 2017-10-25: Night battle accuracy bonus added
  • 2018-11-16: Visible bonuses added
  • 2020-02-07: Became buildable
  • 2020-03-27: Visible bonuses increased

Fit Bonuses

Ship Extra Requirement Firepower Torpedo Attack Anti-Air Anti-Submarine Warfare Line of Sight Armor Evasion Note
AobaAoba +1 Added 2020-03-27
KaiAoba Kai +1 +1
+ LOS Radar +3 +2 +2
+ AIR Radar +5 +2
KinugasaKinugasa +1 Added 2020-03-27
KaiKinugasa Kai Only +1
Kai NiKinugasa Kai Ni +2 +1
+ LOS Radar +3 +2 +2
+1 Added 2020-03-27
Kai NiFurutaka Kai Ni
Kako Kai Ni
+ LOS Radar +3 +2 +2
Mogami Kai Ni (Toku)Mogami Kai Ni
Mogami Kai Ni Toku


Other Mogami-classMogami

+1 Added 2020-03-27

Akashi's Improvement Arsenal

Type Name Resource Day 2nd Ship Note
Fuel Ammunition Steel Bauxite Item Icon Development Material.png Item Icon Improvement Material.png # of equipment needed for that upgrade. An asterisk following the number indicates a different equipment is required. Sun Mon Tue Wed Thu Fri Sat
Medium Main Gun 20.3cm(no.2) Twin Gun Mount 0 10 100 130 0 2/3 2/3 - M
M M X K K K Myoukou
Kinugasa Kai Ni
Can be upgraded to 20.3cm(no.3) Twin Gun Mount
6 2/4 2/4 1
10 4/8 4/11 1

See Also

20 cm/50 3rd Year Type naval gun 2 GÔ (Mark II) guns