Marineleichtgeschütz 27 mm

Also known as

MLG 27
MLG27
Marineleichtgeschütz
SeaSnake 27
MLG27-4.0

Marineleichtgeschütz 27 mm is Rheinmetall's 27 mm remote-controlled naval gun family, based on the BK-27M revolver cannon and documented on F125 frigates and Ensdorf-class mine-countermeasure vessels.

Marineleichtgeschütz 27 mm, 27 mm remote-controlled naval gun, Naval Systems

Image source: Wikimedia Commons: MLG auf EGV.JPG

Profile / Specs

Profile

Origin: Germany
Built by: Rheinmetall Waffe Munition GmbH
Type: 27 mm remote-controlled naval gun

naval shipboard autocannon surface warfare

Specifications

Caliber: 27 mm x 145
Gun: BK-27M revolver cannon
Rate of fire: Up to 1,700 rounds per minute
Fire modes: Single shot, adjustable bursts, or sustained fire
Sensors: Daylight cameras, infrared sensors, and laser rangefinders

Carrier Ships

German Navy surface combatants mount the 27 mm Marineleichtgeschütz as a close-range defense gun.

Carrier

Carrier type

Carriage evidence

Baden-Württemberg / F125 frigate, Stabilization frigate class, Naval Systems

Baden-Württemberg / F125 frigate

Frigate

Bundeswehr says the F125 class carries two Marineleichtgeschütze, one on each side amidships, for close-range sea and air defense.

Sources: Bundeswehr: Baden-Württemberg-class F125 frigates

Ensdorf class mine-countermeasure vessel, Mine-countermeasure vessel class, Naval Systems

Ensdorf class mine-countermeasure vessel

Mine-countermeasure vessel

The M 1094 Ensdorf chronology lists a 27 mm MLG 27 in the ship's armament from 2000 onward.

Sources: M 1094 Ensdorf - Das Historische Marinearchiv

Carrier Platforms

Bundeswehr lists the Frankenthal class minehunters with a 27 mm MLG in their weapons fit.

Carrier

Carrier type

Carriage evidence

Frankenthal class minehunter, Minehunter class, Naval Systems

Frankenthal class minehunter

Minehunter class

The Frankenthal class armament list includes one 27 mm MLG mounted on the boat.

Sources: Die Minenjagdboote der Frankenthal-Klasse - Bundeswehr

Service And Conflict Use

Service History

In service: Used on German Navy surface combatants for close-range defense against small surface and air targets.
Used by: German Navy

Media

Marineleichtgeschütz 27 mm Videos

Rheinmetall MLG 27 Mehrzweck Marinegeschütz

Marineleichtgeschütz 27 mm Images

Marineleichtgeschütz 27 mm, 27 mm remote-controlled naval gun, Naval Systems - view 1 — Source: Wikimedia Commons: F260 Braunschweig, port side MLG 27.jpg

Marineleichtgeschütz 27 mm, 27 mm remote-controlled naval gun, Naval Systems - view 2 — Source: Wikimedia Commons: MLG 27 port side F260 Braunschweig Rostock 2024.JPG

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Sources

Bundeswehr: MarineleichtgeschützPublisher: Bundeswehr | Note: Supports the 27 mm Marineleichtgeschütz role against close-range sea and air targets and the F125 amidships placement context. | Accessed: 2026-06-27 Die Minenjagdboote der Frankenthal-Klasse - BundeswehrPublisher: Bundeswehr | Note: Supports the Frankenthal-class armament list that includes one 27 mm MLG mount. | Accessed: 2026-06-27 Rheinmetall: Next-generation gun systems MLG27-4.0 for German frigatesPublisher: Rheinmetall | Note: Supports the SeaSnake family background, the BK-27M core, the 27 mm caliber, the selectable fire modes, the sensor suite, and the 1,700 rpm rate of fire. | Accessed: 2026-06-27 Bundeswehr: Baden-Württemberg-class F125 frigatesPublisher: Bundeswehr | Note: Supports the F125 carriage relationship and identifies two Marineleichtgeschütze mounted amidships, one on each side, for close-range sea and air defense. | Accessed: 2026-06-27 M 1094 Ensdorf - Das Historische MarinearchivPublisher: Historisches Marinearchiv | Note: Supports the Ensdorf class armament listing with a 27 mm MLG 27 from 2000 onward. | Accessed: 2026-06-27 Wikimedia Commons: MLG auf EGV.JPGPublisher: Wikimedia Commons | Note: Supports the primary image provenance and open-license context. | Accessed: 2026-06-27 Wikimedia Commons: F260 Braunschweig, port side MLG 27.jpgPublisher: Wikimedia Commons | Note: Supports one gallery image provenance and open-license context. | Accessed: 2026-06-27 Wikimedia Commons: MLG 27 port side F260 Braunschweig Rostock 2024.JPGPublisher: Wikimedia Commons | Note: Supports one gallery image provenance and open-license context. | Accessed: 2026-06-27