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16inch Mk.V Twin Gun Mount

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No.331 16inch Mk.V連装砲
RedGunHeavy.png Large Caliber Main Gun (??)
Effects: Firepower+21 AA+2 Armor+2 Accuracy+2 Evasion+1 RangeLong
Scrap value: Ammo 13 Steel 21 Bauxite 2 (Unbuildable)

Equipment Card 16inch Mk.V Twin Gun Mount.png

Equipment Character 16inch Mk.V Twin Gun Mount.png

Equipment Item 16inch Mk.V Twin Gun Mount.png

Equipment Full 16inch Mk.V 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



This is an improved and enhanced version of the 16 inch main gun turrets adopted as the standard armament of the American-made Big 7, the Colorado-class. The nameship of the Colorado-class battleships, along with her sisters that were once destroyed at Pearl Harbor, were refitted with these guns after their overhaul at the start of the war.


Main GunsSmall Caliber Main GunSmall Caliber Main GunLarge Caliber Main Gun are the main armement used by surface ships. Their main stats are the "firepower" Firepower and "accuracy" Accuracy. They are notably required to trigger all Artillery Spotting attacks as well as some Night Cut-Ins, notably the "Double Attack" (DA).


How To Obtain

Stock equipment of: Colorado KaiColorado Kai, Maryland KaiMaryland Kai

Upgradeable from: 16inch Mk.I Twin Gun Mount16inch Mk.I Twin Gun Mount

Ranking reward for:

  • Mar 2019: 1-5, 21-100
  • Apr 2019: 21-100
  • Mar 2022: 21-100 (★+1)

Updates History

Fit Bonuses

Ship Extra Requirement Firepower Torpedo Attack Anti-Air Anti-Submarine Warfare Line of Sight Armor Evasion Note
Colorado-class KaiColorado Kai
Maryland Kai
+2 +1
Nagato-class Kai NiNagato Kai Ni
Mutsu Kai Ni

Nelson KaiNelson Kai

Colorado-class (Base)Colorado



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
Large Caliber Main Gun 16inch Mk.V Twin Gun Mount 0 30 350 480 0 6/7 3/4 2xRedGunHeavy.png X X X Colorado Upgrades to 16inch Mk.VIII Twin Gun Mount Kai
6 8/16 4/7 3xRedGunHeavy.png
10 17/27 7/13 4xRedGunHeavy.png
2xItem Icon New Model Gun Mount Improvement Material.png
2xItem Icon New Model Armament Material.png
Improvement Improved effects
Large Caliber Main Gun 1★ 2★ 3★ 4★ 5★ 6★ 7★ 8★ 9★ Max★
Firepower 1.50 2.12 2.59 3.00 2.35 3.67 3.96 4.24 4.50 4.74
Night Battle Power 1.00 1.41 1.73 2.00 2.23 2.44 2.64 2.82 3.00 3.16
Accuracy 1.00 1.41 1.73 2.00 2.23 2.44 2.64 2.82 3.00 3.16

See Also