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12.7cm Single Gun Mount

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12.7cm Single Gun Mount

No.78 12.7cm単装砲

Small Caliber Main Gun Small Caliber Main Gun

Effects: Firepower+2 Accuracy+1 Range Short

Scrap Value: Ammunition1 Steel1

Equipment Card 12.7cm Single Gun Mount.png

Equipment Character 12.7cm Single Gun Mount.png

Equipment Item 12.7cm Single Gun Mount.png

Equipment Full 12.7cm Single 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



This was the main gun of destroyers from that country. It was equipped on the Z1 class of destroyers.
Although it was just a single-mount, it was a good gun for anti-ship and anti-ground shelling.
Unfortunately, this gun is unsuited for anti-air combat.


Not to be confused with 12.7cm Twin Gun Mount.

Requires a German secretary ship (e.g. Z1) to be constructed.

How To Obtain


Stock equipment of Z1 KaiZ1 Kai, Z1 ZweiZ1 Zwei, Z1Z1, Z3 KaiZ3 Kai, Z3 ZweiZ3 Zwei, Z3Z3


Used to improve 12.7cm Single Gun Mount12.7cm Single Gun Mount

Updates History

  • 2014-03-14: Implemented
  • 2014-03-28: Card CG updated
  • 2020-11-13: Became buildable, became improvable, visible bonuses added

Fit Bonuses

Ship Extra Requirement Firepower Torpedo Attack Anti-Air Anti-Submarine View Range Armor Evasion Note
Type 1934-ClassZ1
(★0-6) +1 +1
(★7-9) +2 +1
(★MAX) +2 +1 +1
+ LOS Radar +2 +2 +2

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 Naval Gun 0 10 20 70 10 3/3 1/2 1xRedGunLight.png Z1


Z3 Z3 Z1 Z1 Z1




6 4/5 2/3 1xRedGunLight.png
10 - - -

See Also

12.7 cm SK C/34 naval gun