10 September 2025

K3: The New Tank That Resembles a B-21 Stealth Bomber

Reuben Johnson

Key Points and Summary – South Korea’s Hyundai-Rotem is developing the K3, a next-generation main battle tank concept packed with futuristic technology.

-Prioritizing firepower, the K3 concept features a larger 130mm main gun with AI-based fire controls and an autoloader for a three-person crew.

K3 Detailed Model View Image by National Security Journal.

-It is envisioned with a silent hybrid-electric propulsion system, advanced active defenses, and stealth features.

-The biggest leap is its fully networked architecture, using AI for battle management and all primary functions, making it more like a B-21 bomber than a traditional tank. The K3 is projected to enter service around 2040.

We Got Really Close to the New K3 Tank Model Here in Poland

WARSAW, POLAND – In July, South Korea’s Hyundai-Rotem Corporation (HRC) formally announced that they were engaged in the development of the K3 next-generation main battle tank (NG-MBT).

And as luck would have it, we got really close to the model design that was being demoed at a recent defense expo here in Poland. All images in this article are from that event.

And they are impressive, to put it mildly.

The entire project is being carried out in conjunction with the Republic of Korea (ROK) government’s Agency for Defense Development (ADD) and Defense Agency for Technology and Quality.

What Makes the K3 Tank So Special

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