Breakthrough for Seasnake: Sweden becomes first NATO customer

The newest NATO member, Sweden, has commissioned Rheinmetall to supply eight Seasnake 30 weapon systems for the Swedish Navy. These systems will be the primary armament of the new Combat Boat 90 fast military assault craft. The first order under the framework agreement is worth around €63 million and was placed in February 2026. Delivery of the first system is scheduled for February 2028.

The framework agreement also includes airburst and 30 mm calibre training ammunition, with a term of four years. Spare parts and services are also included in the agreement. Additionally, the contract includes an option for up to 29 extra Seasnake weapon systems.

The Seasnake 30 is a state-of-the-art remote-controlled naval light gun designed for close-range defence. Alongside the weapon itself, the system incorporates modern daylight cameras, infrared sensors, and a laser rangefinder. It features automatic target detection and the ability to track multiple targets simul¬taneously. The revolver cannon’s nominal maximum rate of fire is 1,100 rounds per minute.

Thanks to its integrated airburst capability, the Seasnake 30 is particularly effective against air targets, such as drones. Its low silhouette and compact stealth design also make it difficult for enemy sensors to detect.

This order from Sweden marks an important market success for Rheinmetall, as it positions the Seasnake 30 with a NATO customer for the first time. This decision highlights confidence in the performance and future viability of Rheinmetall’s modern naval weapon systems. At the same time, the order reinforces the Group’s standing as a dependable provider of maritime defence solutions within the alliance.

Rheinmetall