Project TROUBLER: The UK MoD’s Mission to Upgrade Infantry Firepower

The United Kingdom’s Ministry of Defence (MoD) has set its sights on modernizing the firepower available to its dismounted infantry with the launch of Project TROUBLER, a competitive tender aimed at procuring a new 5.56mm lightweight assault machine gun.

This initiative, announced last Friday, February 14, is intended to replace the decommissioned L110 A2, a 7.1 kg (15.7 lbs) machine gun that previously served in conflicts such as Afghanistan and Iraq.

The contract for this next-generation weapon is valued at up to £4 million ($5 million), and interested suppliers have until March 24, 2025, to submit their proposals.

The Need for a New Lightweight Machine Gun

The discontinuation of the L110 A2 created a capability gap in the British infantry’s arsenal. While effective in its time, the aging system has become increasingly incompatible with modern battlefield demands.

The MoD now seeks a solution that is not only lighter and more mobile but also better suited for prolonged engagements and diverse combat environments.

The goal is to improve mobility for soldiers on foot without sacrificing firepower or reliability.

According to the tender notice, the new machine gun must be lighter than its predecessor, a critical factor in reducing the load burden on infantry personnel.

Additionally, it must be interoperable with various accessories and fire control systems, ensuring seamless integration with existing equipment.

These requirements highlight the MoD’s commitment to fielding an advanced weapon system that aligns with modern combat needs.

The Competitive Procurement Process

Project TROUBLER is being handled through an open competitive tender, allowing defense contractors to submit their proposals via the Defence Sourcing Portal.

Suppliers must complete a Dynamic Pre-Qualification Questionnaire (DPQQ), which assesses their professional qualifications and ability to meet the stringent technical criteria set forth by the MoD. Adhering to the Professional Qualifications Directive, only certified defense contractors will be considered.

While specific testing and deployment timelines have not been disclosed, the selection process will focus on three primary factors:

1. Weight Reduction – The new machine gun must be significantly lighter than the L110 A2, easing the physical burden on infantry troops.
2. Performance – Reliability, durability, and sustained firepower will be critical factors in determining the winning bid.
3. 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.