The U.S. Army is looking for new manufacturers to build barrels for 155mm howitzers amid concerns at the Pentagon that the government’s only plant for manufacturing them can’t keep up with the increased demand for artillery.
The Army wants contractors that can manufacture up to 10 barrels per month within three years, according to the Sources Sought notice. The deadline is Nov. 23.
Companies were asked to provide details of their ability — or their subcontractor’s capacity — to make barrels, including whether they could add “chrome bore coatings on a steel tube up to 30 [feet] long and up to 7,500 pounds in weight,” the notice said. They should also provide the maximum length and weight of tube that they could coat.
Also desired are details on a company’s boring, milling and rifling capabilities, as well as details on raw materials, such as “steel preform production, forging, guide bore, and heat treatment.”
The notice asks contractors to estimate their capacity to manufacture 155mm barrels within 18 months, and up to 10 barrels per month within 36 months. Companies should also offer a cost estimate for an “initial production quantity of 40 cannon tubes (broken down by caliber or indicating pricing for a combined/flexible mix),” the Army said.
Currently, the Army makes large-caliber barrels for howitzers and tanks only at the aging Watervliet Arsenal in New York.
While America and Europe have been focused on expanding production of howitzer ammunition to meet demand in the Ukraine war and replenish domestic stockpiles, another problem is a lack of manufacturing capacity to replace worn-out cannon barrels.
A 2024 Pentagon budget document stated that Ukraine’s heavy use of M777 howitzers created a demand for more than 30 M776 tubes per month, according to The War Zone. The document admitted that Watervliet could not keep up with demand, and asked for emergency funding to be transferred to enable a second manufacturer of barrels.
The new notice doesn’t mention how many additional barrel manufacturers are needed. However, the Army is exploring whether to replace the M777 with a weapon based on Korea’s popular K9 howitzer.
Michael Peck is a correspondent for Defense News and a columnist for the Center for European Policy Analysis. He holds an M.A. in political science from Rutgers University. Find him at theuncommondefense.com. His email is mikedefense1@gmail.com.
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