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US Army Picks Hanwha's Wheeled K9 Howitzer for Mobile Tactical Cannon Program
Defense Mobility

US Army Picks Hanwha's Wheeled K9 Howitzer for Mobile Tactical Cannon Program

By Heavy-shift 3 min read
US Army Picks Hanwha's Wheeled K9 Howitzer for Mobile Tactical Cannon Program
US Army Picks Hanwha's Wheeled K9 Howitzer for Mobile Tactical Cannon Program

US Army Picks Hanwha's Wheeled K9 Howitzer for Mobile Tactical Cannon Program

The US Army has selected Hanwha Defense USA's wheeled K9 Mobile Howitzer (K9MH) for the prototyping phase of its Mobile Tactical Cannon (MTC) program, the service's flagship effort to replace towed M777 artillery in select formations. The competitive award, announced 18 August, covers the accelerated delivery of six prototype systems with an option for 12 more — up to 18 wheeled self-propelled howitzers for rapid prototyping, testing and soldier experimentation over an estimated four-year period. The initial agreement is valued at $100.3 million, with a total cumulative face value of $262.9 million.

A prototype award, not yet a fielding decision

Awarded under Other Transaction Authority as a firm-fixed-price agreement, the contract marks Hanwha Defense USA's first major win with the US Army. Soldiers will put the K9MH through a series of operational experiments in realistic combat conditions, assessing performance, reliability and supportability before any fielding decision is made. If approved, MTC would replace M777 towed artillery in select formations — initially Stryker brigade combat teams, followed by mobile and infantry brigade combat teams — as part of the Army's continuous transformation and long-range fires modernization.

The award followed an intensive competitive phase that included multiple vendor demonstrations in the US and overseas. Contenders included an Anduril–Elbit America–Oshkosh Defense team offering the SIGMA 155mm, Leonardo DRS with KNDS on a CAESAR variant, American Rheinmetall with its wheeled howitzer, and BAE Systems, whose M109A7 Paladin remains in service with the Army's armored formations.

K9 firepower on eight wheels

The K9MH moves the combat-proven K9 family — more than 2,500 howitzers fielded across South Korea, Australia, Egypt, Estonia, Finland, India, Norway, Poland and Turkey — from tracks to an 8×8 wheeled chassis. The vehicle pairs the K9's CN98 155mm/52-caliber cannon with the fully automated gun module from the K9A2: a rear-mounted, uncrewed module handles projectile selection, charge handling, loading and gun laying, while the three crew members stay protected in an armored forward cab. Hanwha says the howitzer can fire its first round within about 20 seconds of arriving at a position, displace again in under 30 seconds, and sustain a rate of fire of 8–9 rounds per minute.

The longer 52-caliber barrel gives the K9MH a decisive reach advantage over the M777 it is designed to replace. Hanwha quotes a maximum range of roughly 60 kilometers — some 37 miles — against under 32 kilometers for the towed M777, even with specialized ammunition. With 40 rounds of onboard storage and a wheeled resupply vehicle derived from the tracked K10 ammunition carrier, the system is built around the shoot-and-scoot tactics that the war in Ukraine has made essential for surviving counter-battery and drone threats.

Building in America

Hanwha's pitch leaned heavily on localization. The company is establishing an integration and test facility in Opelika, Alabama — phase one of a US-anchored K9 manufacturing network — and points to its local production experience in Australia, Egypt, Poland and Romania as proof of the model. "We are not simply delivering a system — we are building an American manufacturing enterprise," said Alex Wong, chief strategy officer of the Hanwha Group.

The prototype award is another milestone for South Korea's defense industry, which has made major export gains in recent years. The Army stresses that the selection does not guarantee fielding — but with a potential requirement that analysts put as high as 498 guns if MTC proceeds, the four-year experiment ahead of the K9MH will be watched closely by artillery programs around the world.

Sources

Defense Mobility Contracts & Orders