UK Restores Domestic Large-Caliber Gun Production with Opening of Telford Gun Hall

On October 22, 2026, defense leaders and corporate executives officially opened Rheinmetall UK's new Gun Hall in Telford, restoring independent, domestic production of large-caliber weapons to Great Britain for the first time in twenty years. Defence Secretary Wes Streeting, Chief of the General Staff General Sir Roly Walker, and Rheinmetall AG Chief Executive Armin Papperger attended the official opening ceremony, which marked the operational launch of the manufacturing facility. Rheinmetall transformed the site from an empty structure into a fully functional sovereign manufacturing capability within an eight-month period, having originally acquired the property in autumn 2025.

The 11,500-square-metre manufacturing space is custom-designed to produce 120mm tank gun barrels as well as 155mm artillery barrels, breeches, and breech blocks. The output will directly supply primary British land warfare platforms, including the Challenger 3 main battle tank and the RCH 155 self-propelled artillery system, alongside prospective future artillery initiatives. At peak production capacity, the Telford facility is built to manufacture up to 245 heavy barrels per year across both key calibres, in addition to producing more than fifty complete breech assemblies annually.

The production timeline advanced in rapid phases prior to the formal ceremony, with breech block manufacturing commencing in May 2026 and initial barrel production following shortly after in June 2026. To facilitate this transfer of high-tech defense industrial expertise, British workers completed comprehensive training and knowledge transfer courses at Rheinmetall's primary production facility located in Unterlüß, Germany. Production processes will eventually incorporate specialized British steel sourced from Sheffield Forgemasters, while supply chains will involve active partnerships with small and medium-sized enterprises across the United Kingdom.

The Gun Hall currently accounts for thirty-five of the approximately 685 personnel employed by Rheinmetall in Telford, with staffing at the facility expected to exceed one hundred highly skilled workers as operations expand. Executive leadership highlighted the facility as a concrete industrial realization of the bilateral Trinity House Agreement between the United Kingdom and Germany. While the plant expands heavy calibre production, British defense ministers recently confirmed in Parliament that there is no operational requirement to procure 105mm barrels for the L118 Light Gun, excluding that legacy calibre from domestic production restart plans.

The opening of the Telford Gun Hall represents the end of a two-decade hiatus in domestic British heavy weapon manufacturing, during which the United Kingdom lacked native industrial capacity to forge and machine large-caliber gun barrels. Over the past twenty years, British defense procurement relied heavily on foreign suppliers for heavy artillery and tank main armament, leaving domestic supply chains dependent on overseas manufacturing capabilities. The wider effort to restore sovereign artillery production has gained urgency amid shifting European security requirements and military aid commitments, including previous shipments of British-made artillery barrels to Ukraine.

The establishment of the Telford facility fits into Rheinmetall's broader industrial footprint in the United Kingdom, where the defense contractor has invested over £200 million across five years. Operating through Rheinmetall BAE Systems Land in Telford, the company is already responsible for manufacturing major land systems, including the Boxer Mechanised Infantry Vehicle and prototype testing for the Challenger 3 main battle tank program. Furthermore, the Gun Hall serves as a key industrial milestone under the Trinity House Agreement, a bilateral defense cooperation agreement signed between the British and German governments to deepen military-industrial integration and bolster sovereign defense production across NATO allies.