While specific testing and deployment timelines have not been disclosed, the selection process will focus on three primary factors:
- Weight Reduction – The new machine gun must be significantly lighter than the L110 A2, easing the physical burden on infantry troops.
- Performance – Reliability, durability, and sustained firepower will be critical factors in determining the winning bid.
- Operational Suitability – The weapon must be adaptable to multiple combat scenarios, ensuring effectiveness across diverse environments.
Potential Contenders for the Contract
While the competition remains open, Belgian firearms manufacturer FN Herstal is already being discussed as a likely contender.
The company’s FN Minimi 5.56 Mk3 Light Machine Gun has been a staple in modern military arsenals, but at 8 kg (17.6 lbs), it may be too heavy to meet the MoD’s stringent weight requirements.
Instead, FN Herstal may offer its FN Evolys Ultralight Machine Gun, which weighs just 5.5 kg (12.1 lbs) and is designed to combine the firepower of a machine gun with the maneuverability of an assault rifle.
Other potential bidders may include renowned defense manufacturers from the UK, Europe, and the United States, each striving to deliver a cutting-edge solution that meets the MoD’s expectations.
Future Role in British Infantry Forces
The introduction of a new lightweight assault machine gun under Project TROUBLER will have a significant impact on British infantry operations.
A more mobile, lightweight system will allow troops to engage enemies more effectively while reducing fatigue and increasing battlefield endurance.

Additionally, a modernized weapon system will improve fire superiority, ensuring that UK forces maintain a technological and tactical edge over adversaries.
The MoD’s commitment to this project underscores the broader strategic goal of enhancing soldier effectiveness in modern combat scenarios.
With evolving threats and battlefield requirements, Project TROUBLER represents a crucial investment in the future of UK infantry forces.
Final Thoughts
As the MoD reviews potential bids for Project TROUBLER, the outcome of this tender will shape the next generation of British infantry firepower.
Whether FN Herstal or another manufacturer secures the contract, the new lightweight machine gun will play a vital role in enhancing mobility, firepower, and overall combat effectiveness for UK troops.
This initiative signals the UK’s ongoing commitment to equipping its armed forces with state-of-the-art technology, ensuring their readiness for the challenges of modern warfare.









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