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25mm Single Autocannon Mount

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No.49 25mm単装機銃
GreenGunMG.png Anti-Aircraft Gun
Effects: AA+4 Evasion+1
Scrap value: Ammo 1 Steel 1 (Buildable)

Equipment Card 25mm Single Autocannon Mount.png

Equipment Character 25mm Single Autocannon Mount.png

Equipment Item 25mm Single Autocannon Mount.png

Equipment Full 25mm Single Autocannon 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 the standard anti-aircraft machine gun. Most late naval vessels were equipped with this machine gun. These were used to protect against attacks from enemy aircraft, but later evaluation showed they were subjected to overheating. In order to prevent the issues of the barrels overheating, the twin and triple barrel variations are produced and deployed.


Anti-Aircraft Gun AA Guns are equipable in RE. They are mainly used to provide "Anti-Air", notably via their AA Anti-Air stat. They:

  • Are notably required in most AACI.
  • Trigger a tracer-fire effect during air combat.
  • Bring an accuracy bonus against PT Imp.

"AA Rocket Launchers" may be described and displayed differently, they still behave like regular AA guns.


How To Obtain


Stock equipment of: Akebono Kai NiAkebono Kai Ni, Akebono KaiAkebono Kai, Matsu KaiMatsu Kai, Oboro KaiOboro Kai, Sagiri KaiSagiri Kai, Sazanami KaiSazanami Kai, Shikinami KaiShikinami Kai, Souya (AGS)Souya (AGS), Ushio KaiUshio Kai

From quest: Bm8 (x2, choice), C44 (x3, choice), G7 (x2, choice), G8 (x2, choice), G10 (x2, choice)

From limited-time quest: 21Su LB4 (x4, choice), 2103B1 (x2, choice), 2203 B1 (x2, choice)


Used to improve: 25mm Single Autocannon Mount25mm Single Autocannon Mount, 8cm High-angle Gun8cm High-angle Gun, Daihatsu Landing Craft (Type 89 Medium Tank & Landing Force)Daihatsu Landing Craft (Type 89 Medium Tank & Landing Force), 38.1cm Mk.I Twin Gun Mount38.1cm Mk.I Twin Gun Mount, 8cm High-angle Gun Kai + Additional Machine Guns8cm High-angle Gun Kai + Additional Machine Guns, Soukoutei (Armored Boat Class)Soukoutei (Armored Boat Class)

Used by quests: F42, F89

Updates History

  • 2013-??-??: Added to game data, but unobtainable
  • 2016-03-11: Became buildable, improvable, and upgradeable to 25mm Twin Autocannon Mount25mm Twin Autocannon Mount

Fit Bonuses

Ship Extra Requirement Firepower Torpedo Attack Anti-Air Anti-Submarine Warfare Line of Sight Armor Evasion Note
Yahagi Kai Ni BYahagi Kai Ni B +3 +2
Noshiro Kai NiNoshiro Kai Ni
Yahagi Kai NiYahagi Kai Ni
+2 +1
+1 +2 +2
+ AIR Radar +2 +2


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
Anti-Aircraft Gun 25mm Single Autocannon Mount 0 0 10 10 10 0/1 1/1 -  
Upgrades to 25mm Twin Autocannon Mount ★+5
6 1/2 1/1 1xGreenGunMG.png
10 2/3 1/2 1xGreenGunMG.png
Improvement Improved effects
Anti-Aircraft 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
Torpedo Attack 1.2 1.69 2.07 2.40 2.68 2.93 3.17 3.39 3.60 3.79
Anti-Air Ship 4.00 5.66 6.93 8.00 8.94 9.80 10.58 11.31 12.00 12.65
Accuracy Torpedo 2.00 2.82 3.46 4.00 4.47 4.89 5.29 5.65 6.00 6.32

See Also


Type 96 25 mm AT/AA Gun