German engineering is aiming to boost infantry firepower with a compact weapon capable of hitting targets up to 900 meters.
The MV ammunition, more powerful than the established 40 mm x 46 low velocity (LV) ammunition, offers superior velocity and range, as well as a larger payload, including programmable airburst ammunition. The system’s break-barrel design also allows for the leverage of longer ammunition, bridging the gap with the 40 mm x 53 high velocity (HV) caliber, typically reserved for heavier automatic grenade launchers.
Weighing approximately 4 kg (8.8 lbs) and measuring 80 cm (31.5 inches) in length, the SSW40 is ambidextrous and features controls accessible from both sides. Prototypes demonstrated accuracy up to 500 meters during trials organized in June 2025 at the Unterlüß test center. Participants noted ergonomics comparable to a heavy assault rifle and the effectiveness of the weapon’s hydropneumatic recoil reduction system.
The SSW40 is currently in its final qualification phase, with series production slated to initiate in 2026. The announcement follows a live firing demonstration of the SSW40 in July 2025, showcasing the world’s first automatic, magazine-fed, shoulder-fired grenade launcher for 40 mm x 46 MV ammunition. Rheinmetall also debuted the weapon at its Unterlüß test centre. EDR Magazine reports the SSW40 features a break-barrel allowing for special purpose ammunition.
