Naval Systems

AK-100 naval gun

Also known as
  • AK-100
  • 100 mm AK-100
  • A-214
  • ZIF-91
  • АК-100
  • А-214
  • ЗИФ-91
  • 100 mm/70 AK-100
  • 100 mm/70 A-214
  • AK-100-MR-145
  • AK-100-MR-114

The AK-100 is a Soviet 100 mm automatic naval gun mount developed by Arsenal for late Cold War surface combatants. It pairs the water-cooled A-214 cannon with automatic loading, large on-mount ammunition drums, and MR-114/MR-145 or optronic fire-control integration for sea, air, and coastal targets on Udaloy, Krivak-derivative, Neustrashimy, and other ship classes.

AK-100 naval gun, 100 mm automatic naval gun mount, Naval Systems
Image source: Admiral Tributs - AK-100 Main Gun.jpg
Profile / Specs

Profile

Origin
Soviet Union
Built by
Arsenal
Type
100 mm automatic naval gun mount
Service note
Late Cold War and post-Soviet shipboard naval gun
Designer
Arsenal
Designed
1967-1973
Produced
1978 onward
Number built
About 65 turrets in public reference data

Specifications

System designation
AK-100 artillery complex; A-214 gun; ZIF-91 mount/development index
Caliber
100 mm/70
Gun
A-214 100 mm L/70 cannon
Mount weight
About 35.5 tonnes
Rate of fire
About 50-60 rounds per minute
Maximum range
About 20-21 km in public reference data
Elevation
-10 to +85 degrees
Traverse
360 degrees
Traverse rate
About 35 degrees per second
Muzzle velocity
About 880 m/s
Complete round weight
About 26.8 kg
Projectile weight
About 15.6 kg
On-mount ready ammunition
174 rounds in two ammunition drums
Fire control
MR-114/MR-145 radar control, or remote optronic analog control with on-mount sighting backup
Shell types
High-explosive, time-fuzed anti-aircraft, and proximity-fuzed anti-aircraft shells are described in public reference data
Mount And Fire Control

The AK-100 is a complete shipboard artillery complex rather than only a 100 mm barrel. Public references describe the water-cooled A-214 cannon, automatic loading, two ammunition drums in the turret, and fire-control links for remote engagement of surface, air, and coastal targets.

Gun and mount

The A-214 100 mm L/70 cannon sits inside the AK-100/ZIF-91 mount and uses automatic loading to sustain a high naval-gun rate of fire.

Source: Weaponsystems.net AK-100.

Fire control

RussianShips.info ties Project 1155 and Project 11540 AK-100 fits to MR-145 Lev-218-100 fire control, and Project 1135M AK-100 fits to MR-114 Lev-214.

Sources: RussianShips Project 1155; RussianShips Project 1135; RussianShips Project 11540.

Conflict evidence

The catalog record remains relationship-only because available sources support installed ship classes and technical context, not direct AK-100 use in a named conflict.

Variants

Public sources use several designation layers for the same shipboard system: AK-100 for the artillery complex, A-214 for the 100 mm cannon, and ZIF-91 for the turret/mount designation.

VariantConfigurationDesignation notes
A-214Gun designation

Weaponsystems.net identifies the A-214 as the 100 mm L/70 monobloc cannon inside the AK-100 mount.

Sources: Weaponsystems.net AK-100

ZIF-91Mount designation

Weaponsystems.net lists ZIF-91 as an alternate designation associated with the AK-100 shipboard gun mount.

Sources: Weaponsystems.net AK-100

Documented Carrier Classes

The AK-100 is a shipboard gun mount; public sources tie it to Soviet and Russian surface-combatant classes rather than to a standalone battlefield deployment.

CarrierCarrier typeCarriage evidence
Udaloy-class anti-submarine destroyer, Guided-missile anti-submarine destroyer, Naval SystemsUdaloy-class anti-submarine destroyerAnti-submarine destroyer

RussianShips.info lists Project 1155 Udaloy with two single AK-100 mounts and MR-145 Lev-218-100 fire control; the gallery image shows the forward AK-100 arrangement on Admiral Tributs.

Sources: RussianShips Project 1155, Admiral Tributs - AK-100 Main Gun.jpg

Project 1135 Burevestnik / Krivak-class frigate and derivatives, Anti-submarine frigate family, Naval SystemsProject 1135 Burevestnik / Krivak-class frigate and derivativesFrigate family

RussianShips.info identifies Project 1135M / Krivak II ships with two single AK-100 mounts and MR-114 Lev-214 fire control; GlobalSecurity separately lists single 100 mm guns on later Project 1135 variants.

Sources: RussianShips Project 1135, GlobalSecurity Project 1135

Neustrashimy-class frigate, Anti-submarine warfare frigate, Naval SystemsNeustrashimy-class frigateAnti-submarine frigate

RussianShips.info lists Project 11540 Neustrashimy with one AK-100 mount, 350 AZ-UZS-58 rounds, and MR-145 Lev-218-100 fire control.

Sources: RussianShips Project 11540

Timeline

AK-100 naval gun Key Events

  1. Development starts

    Public reference data attributes AK-100 development to Arsenal beginning in 1967, with the system intended as a Soviet 100 mm automatic naval artillery complex.

    Sources: Weaponsystems.net AK-100

  2. Shipboard service begins

    Weaponsystems.net places AK-100 service entry in 1978, while Military Periscope describes the mount as fitted to Russian warship classes since the mid-1970s.

    Sources: Weaponsystems.net AK-100, Military Periscope AK-100

Media

AK-100 naval gun Images

AK-100 naval gun, 100 mm automatic naval gun mount, Naval Systems - view 1
Source: Admiral Vinogradov - AK-100 Front View.jpg
Related Weapon Systems
Neustrashimy-class frigate, Anti-submarine warfare frigate, Naval SystemsNaval SystemsNeustrashimy-class frigateAnti-submarine warfare frigateThe Neustrashimy-class frigate is the Soviet Project 11540 Yastreb anti-submarine warfare frigate family, designed through a long Cold War development path and built at Yantar Shipbuilding Plant in Kaliningrad for Russian Baltic Fleet service. Only Neustrashimy and Yaroslav Mudry were completed, but the class combines a 129.8 m hull, helicopter facilities, sonar-centered anti-submarine weapons, 3K95 Kinzhal naval surface-to-air missiles, Kortik close-in defenses, and Kh-35 Uran anti-ship missiles on the second ship. Neustrashimy is directly documented in the 2008 Gulf of Aden counter-piracy campaign.
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Sources

Weaponsystems.net AK-100Publisher: Weaponsystems.net | Note: Supports AK-100 identity, Soviet origin, Arsenal development and production attribution, A-214 and ZIF-91 designations, service-entry context, user and ship-class context, and listed technical specifications. | Accessed: 2026-07-13Military Periscope AK-100Publisher: Military Periscope | Note: Supports the AK-100 as a rapid-fire, water-cooled, dual-purpose 100 mm naval artillery gun fitted to Russian warship classes since the mid-1970s. | Accessed: 2026-07-13GlobalSecurity Project 1135Publisher: GlobalSecurity.org | Note: Supports Krivak / Project 1135 variant specifications and the single 100 mm gun fit on later variants used for the AK-100 carrier-class relationship. | Accessed: 2026-07-13RussianShips Project 1155Publisher: RussianShips.info | Note: Supports the Project 1155 / Udaloy-class AK-100 carrier relationship, including two single 100 mm AK-100 mounts, AZ-UZS-58 ammunition, and MR-145 Lev-218-100 fire control. | Accessed: 2026-07-13RussianShips Project 1135Publisher: RussianShips.info | Note: Supports the Project 1135M / Krivak II AK-100 carrier relationship, including two single 100 mm AK-100 mounts and MR-114 Lev-214 fire control. | Accessed: 2026-07-13RussianShips Project 11540Publisher: RussianShips.info | Note: Supports the Project 11540 / Neustrashimy-class AK-100 carrier relationship, including one single AK-100 mount, 350 AZ-UZS-58 rounds, and MR-145 Lev-218-100 fire control. | Accessed: 2026-07-13Admiral Tributs - AK-100 Main Gun.jpgPublisher: Wikimedia Commons | Note: Image provenance for the primary gallery photograph showing two 100 mm AK-100 main guns on Admiral Tributs. | Accessed: 2026-07-13Admiral Vinogradov - AK-100 Front View.jpgPublisher: Wikimedia Commons | Note: Image provenance for the secondary gallery photograph showing an AK-100 main gun on Admiral Vinogradov. | Accessed: 2026-07-13