US Army orders XM813 production, delivery and support
The XM813 is a 30x173mm calibre cannon. (Photo: Northrop Grumman)
The XM813 cannon forms part of the Stryker Medium Caliber Weapon System 30mm Lethality Upgrade programme.
US Army Contracting Command has awarded a $105.69 million contract modification to Alliant Techsystems Operations (part of Northrop Grumman) to produce, deliver, and maintain new-production configuration 30x173 mm XM813 cannons.
Work locations and funding will be determined with each order, with an estimated completion date of 24 September 2026, the DoD announced on 7 May.
Alliant Techsystems Operations was awarded the original $37.67 million contract in September 2020 to buy long-lead XM813 items for the Stryker Medium Caliber Weapon System 30mm Lethality Upgrade programme.
A subsequent first order calls for 95 XM813 Bushmaster Chain Guns with initial deliveries beginning in 2022. As well as supporting enhancements to the XM813, the chain gains will be integrated into an additional US Army Brigade Combat Team.
The XM813 is a 30x173mm calibre cannon derived from the Mk44 Bushmaster Chain Gun integrated on air, land and naval platforms.
As part of our promise to deliver comprehensive coverage to our Defence Insight and Premium News subscribers, our curated defence news content provides the latest industry updates, contract awards and programme milestones.
Related Equipment in Defence Insight
More from Land Warfare
-
![MyDefence delivers counter-drone system to US Army ahead of livefire exercise]()
MyDefence delivers counter-drone system to US Army ahead of livefire exercise
The Soldier-Kit system consists of detector, jammer, tablet and wideband antenna and is being evaluated as part of Project Flytrap 3.0 counter uncrewed aerial system (CUAS) exercise.
-
![Arquus and Milrem push their UGVs fitted with long-range missiles]()
Arquus and Milrem push their UGVs fitted with long-range missiles
Arquus displayed the Drailer uncrewed ground vehicle (UGV) integrating the Akeron LP long-range missile at the Techterre technology demonstrator event ahead of trials in September.
-
![Contract moves new Abrams tank forward in the face of cuts]()
Contract moves new Abrams tank forward in the face of cuts
Several US Army vehicle programmes were axed by US Secretary of Defense Pete Hegseth’s plans to transform the US Army, as outlined in the Letter to the Force: Army Transformation Initiative document. However, the new generation Abrams M1E3 main battle tank (MBT) was singled out for survival. But what will it look like?
-
![Malaysia signs for two additional GM400α air surveillance radars]()
Malaysia signs for two additional GM400α air surveillance radars
The order is in addition to two systems ordered in 2023. It forms part of a family of systems which is becoming widely used and part of a growing demand for the capability, both in deliveries and requirements.
