Industry partners General Dynamics Land Systems, Kongsberg and Orbital ATK are upgrading the U.S. Army’s Second Cavalry Regiment’s Stryker fleet with a similar system integrating the Protector MCT-30 turret and a variant of the MK44 30mm Bushmaster Chain Gun, designated the XM813. Once fielded, the complete Stryker system will offer combat crews greater protection as they will be able to fight under armor with a leap ahead in firepower, reliability and effectiveness through the addition of a vehicle main gun.
In 2015, 83 Stryker vehicles were ordered for rearmament for the 2nd US Army Cavalry Regiment (the so-called "dragoons"), based in Wilsek, Germany. After the start of production, his rate of production was 10 vehicles per month. In the summer of 2017, fire tests were conducted on the vehicles, one of which was demonstrated at the AUSA conference and exhibition in October 2017, before going to Europe.