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12.7cm Twin Gun Mount

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12.7cm Twin Gun Mount

No.2 12.7cm連装砲

Small Caliber Main Gun Small Caliber Main Gun

Effects: Firepower+2 Anti-Air+2 Range Short

Scrap Value: Ammunition1 Steel2

Equipment Card 12.7cm Twin Gun Mount.png

Equipment Character 12.7cm Twin Gun Mount.png

Equipment Item 12.7cm Twin Gun Mount.png

Equipment Full 12.7cm Twin Gun Mount.png

Refittable Class
Coastal Defense ShipDestroyer
Light CruiserTorpedo Cruiser
Heavy CruiserAviation Cruiser
BattleshipAviation Battleship
Fast BattleshipLight Carrier
Standard CarrierArmored Carrier
Seaplane TenderSubmarine Tender
SubmarineSubmarine Carrier
Repair ShipTraining Cruiser
Fleet OilerAmphibious Assault Ship



The main gun of fleet destroyers.
It has an enclosed, shielded turret that protects it against shrapnel and stormy weather. It also has powered turrets. It served as the main gun of modern small ships and many frontline destroyers.
It isn't good at anti-air because of it's low maximum elevation.


Updates History

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
Small Caliber Main Gun 12.7cm Twin Gun Mount 0 10 30 60 0 1/2 1/2 - - Upgrades to 12.7cm Twin Mount Type-B Kai 2
6 1/2 1/2 1xRedGunLight.png
10 2/3 3/6 2xRedGunLight.png


The main gun for most post-Mutsuki class Japanese destroyers save for the Akizuki, Matsu and Tachibana classes. Had four major variants denoted A, B, C, D respectively (A being the oldest), the main differences between the variants being the weight and the gun's elevation angle. Type A was limited to 40deg. elevation and was quite useless when it came to the AA role. Maximum elevation angle was raised to 75deg. for the B- and D-types while the C-type was capable of 55deg. Unfortunately, the firing rate at high elevation angles was very low since the loading sequence required hand ramming, which made Japanese destroyers vulnerable to aerial attacks.

See Also

12.7 cm/50 Type 3 naval gun