U.S. Army Seeks Private Howitzer Barrel Manufacturers
Industrial machine shops may now bid on government contracts to produce 155mm artillery barrels for military use.
Updated on Oct. 22, 2026 in Manufacturing
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The U.S. Army has issued a solicitation seeking private manufacturers to produce 155mm howitzer barrels, as its existing facility struggles to meet demand. This marks a potential shift for defense-focused machining and fabrication shops to enter the government supply chain.
Why it matters
The military's existing manufacturing capacity at Watervliet Arsenal is currently insufficient to meet the required output of 30 M776 tubes per month. This solicitation opens a pathway for contractors to secure long-term government work by providing specialized heavy-machining capabilities.
The U.S. Army requires production capacity for up to 10 barrels per month within 36 months, significantly higher than current output from the sole government plant. Contractors must be able to handle steel tubes measuring 30 feet and weighing 7,500 pounds.
The players
U.S. Army
The military branch responsible for ground operations and the primary procurement authority for domestic artillery manufacturing.
Watervliet Arsenal
A government-owned, government-operated facility in New York serving as the current sole manufacturer of 155mm howitzer barrels.
The details
To qualify, contractors must demonstrate technical proficiency in core heavy-manufacturing processes, including boring, milling, rifling, and heat treatment. Furthermore, facilities must be equipped for specialized chrome bore coating on massive steel components. The Army is assessing these capabilities as it manages increased artillery demand and evaluates a potential transition from the M777 weapon system to the K9 howitzer.
Timeline
November 23, 2026 is the deadline for contractor Sources Sought notice submissions.
The Army seeks capacity estimates for manufacturing within 18 months.
Contractors are expected to reach a production target of 10 barrels per month within 36 months.
Market Landscape
This solicitation follows the manufacturing requirements established in the 2024 Pentagon budget document. It highlights the military's ongoing pivot toward augmenting specialized government production with private-sector industrial capacity.
Manufacturers with heavy-duty milling and coating capabilities should review the technical specifications for chrome bore application on 7,500-pound steel tubes. Shops should prepare detailed capacity estimates to meet the 18-month and 36-month ramp-up timelines requested by the military.
The takeaway
The transition to outsourcing artillery components suggests a broader push for industrial resilience in defense supply chains. Operators should monitor future contract award announcements to gauge the Army's long-term reliance on the private sector for high-precision heavy armaments.
Further reading
For more on the challenges facing domestic industrial production, visit United States Manufacturing.
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Should the U.S. expand its military manufacturing capacity to meet increased demand for artillery?
