Sea deFNder® with FN M2HB-QCB™

12x99mm NATO (.50 cal)
"Sea deFNder® with FN M2HB-QCB™"
  • Minimi 5.56 Standard

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  • Minimi 5.56 lance grenade

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Taking advantage of its long-standing firearms expertise, FN Herstal designed and developed a complete family of remote weapon stations called deFNder® in order to meet today’s operational requirements. The deFNder® Remote Weapon Stations provide optimized remote firing capability day and night while keeping the operator completely under armor protection. They are easily integrated onto a variety of new or existing mobile or static platforms to fulfil a wide range of missions.

The deFNder® family includes three models:

  • the deFNder® Light is a 100kg class range RWS. It is perfectly suited for integration onto low payload vehicles or for fixed site protection applications and urban warfare thanks to its unique elevation/depression angles. It can integrate the 5.56x45mm NATO cal or 7.62x51mm NATO cal FN machine gun.
  • the deFNder® Medium is a 200kg class range RWS. It can be fitted onto light, medium, and heavy payload, and accepts all FN machine guns from 5.56x45mm NATO cal up to .50 cal and 40mm AGL.
  • the Sea deFNder® is the variant of the deFNder® Medium specifically designed for naval applications.


  • Territorial waters surveillance
  • Self defense and combat
  • Anti-piracyAnti-terrorism
  • Interception of drug or people smugglers


  • Naval forces
  • Coastguards

Main Benefits

  •  Modular

The Sea deFNder® can accept either of the following FN machine guns:

  • FN MINIMI® 5.56 (5.56x45mm NATO cal)
  • FN MINIMI® 7.62 (7.62x51mm NATO cal)
  • FN MAG® (7.62x51mm NATO cal)
  • FN M2HB-QCB™ (.50 cal)
  • FN M3R™ (.50 cal)
  • and 40mm AGL

Replacement of one machine gun with another one takes a few minutes, with no specific tools required.

As part of modularity, the customer can choose among a number of qualified day/sight modules including IR thermal cooled camera. Additionally, the Sea deFNder® is available with a one-hand or game pad control handle, and a standard or higher capacity ammunition box.

  • Dedicated to naval applications

The Sea deFNder® has special features to meet naval requirements:

  • specific surface treatment
  • improved water tightness and water flow
  • specific environmental qualification
  • specific 2-axis gyroscopic stabilization
  • weapon protective cover
  • warning shot

  • Customizable solution

A large number of options are available on request, such as add-on modular ballistic protection, target tracking, and image stabilization

  • Complete service package

In addition to the remote weapon station, FN Herstal provides everything the customer needs for rapid deployment. This includes associated weapon(s), ammunition, technical documentation, technical support, operator’s and maintenance training, and installation of the deFNder® Medium onto the platform.

Every reasonable effort has been made to ensure that all product photographs, descriptions and specifications on this website are accurate. However, inadvertent errors may occur, and changes in design or materials, due to our continual effort to improve products, may result in some change in specifications before subsequent publications are issued. FN Herstal, S.A. reserves the right to modify or change specifications without notice.