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12.7cm Twin Gun Mount

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No.2 12.7cm連装砲
RedGunLight.png Small Caliber Main Gun
Effects: Firepower+2 AA+2 RangeShort
Scrap value: Ammo 1 Steel 2 (Buildable)

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 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 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 its low maximum elevation.


How To Obtain


Stock equipment of: AkatsukiAkatsuki, AkebonoAkebono, AkigumoAkigumo, AkishimoAkishimo, AmagiriAmagiri, AmatsukazeAmatsukaze, ArareArare, ArashioArashio, ArashiArashi, AriakeAriake, AsagumoAsagumo, AsashimoAsashimo, AsashioAsashio, AyanamiAyanami, Chitose KaiChitose Kai, Chiyoda KaiChiyoda Kai, FujinamiFujinami, HagikazeHagikaze, HamakazeHamakaze, HamanamiHamanami, HarusameHarusame, HatsuharuHatsuharu, HatsukazeHatsukaze, HatsushimoHatsushimo, HayanamiHayanami, HayashimoHayashimo, HibikiHibiki, IkazuchiIkazuchi, InazumaInazuma, IsokazeIsokaze, KagerouKagerou, KasumiKasumi, KawakazeKawakaze, KazagumoKazagumo, KishinamiKishinami, KiyoshimoKiyoshimo, KuroshioKuroshio, MaikazeMaikaze, MakigumoMakigumo, MakinamiMakinami, MichishioMichishio, MinegumoMinegumo, Murasame KaiMurasame Kai, MurasameMurasame, NaganamiNaganami, NenohiNenohi, NowakiNowaki, OboroOboro, OkinamiOkinami, OoshioOoshio, OyashioOyashio, SagiriSagiri, SamidareSamidare, SazanamiSazanami, ShigureShigure, ShikinamiShikinami, ShimakazeShimakaze, ShiranuiShiranui, ShiratsuyuShiratsuyu, SuzukazeSuzukaze, SuzunamiSuzunami, TakanamiTakanami, TanikazeTanikaze, TokitsukazeTokitsukaze, UmikazeUmikaze, UrakazeUrakaze, UshioUshio, WakabaWakaba, YamagumoYamagumo, YamakazeYamakaze, YukikazeYukikaze, Yuudachi KaiYuudachi Kai, YuudachiYuudachi, YuugumoYuugumo, HayashioHayashio


Used to improve: 12.7cm Twin Gun Mount12.7cm Twin Gun Mount, 12.7cm Twin Gun Mount Model B Kai 212.7cm Twin Gun Mount Model B Kai 2, 12.7cm Single Gun Mount12.7cm Single Gun Mount, 120mm/50 Twin Gun Mount120mm/50 Twin Gun Mount, 12.7cm Single High-angle Gun Mount (Late Model)12.7cm Single High-angle Gun Mount (Late Model), 12.7cm Twin Gun Mount Model C Kai 212.7cm Twin Gun Mount Model C Kai 2, QF 4.7inch Gun Mk.XII KaiQF 4.7inch Gun Mk.XII Kai, 130mm B-13 Twin Gun Mount130mm B-13 Twin Gun Mount, 12.7cm Twin Gun Mount Model A12.7cm Twin Gun Mount Model A 12.7cm Twin Gun Mount Model C Kai 312.7cm Twin Gun Mount Model C Kai 3

Used by quest: F96

Updates History


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
Improvement Improved effects
Small Caliber Main 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
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


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, and 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. The 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