Serbia Unveils Powerful 203mm TSMB Self-Propelled Mortar Carrier at Partner 2025.

Serbia showcased its new 203mm TSMB wheeled self-propelled mortar carrier at the Partner 2025 defense exhibition in Belgrade. This mortar system combines high firepower with mobility, marking a major advance in Europe’s artillery capabilities.

Serbia officially unveiled the 203mm TSMB 6x6 self-propelled mortar carrier during the Partner 2025 defense exhibition in Belgrade. Mounted on a FAP 2026 6x6 tactical truck, the system delivers unmatched destructive power, enhanced mobility, and advanced digital fire control. Analysts note the unveiling strengthens Serbia’s position in the regional defense market and highlights growing competition in modern artillery development.
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Serbia unveils its new TSMB 203mm heavy self-propelled mortar on FAP 2026 6x6 truck during Partner 2025 in Belgrade, showcasing one of the most powerful mobile mortar systems in the world, designed for the destruction of fortified enemy positions. (Picture source: Army Recognition Group)

Developed around a modernized version of the M-65 howitzer, the TSMB features an extended 203mm barrel capable of firing at ranges between 6 and 12.5 kilometers. Unlike traditional towed artillery, the TSMB provides fast battlefield mobility with high survivability, designed specifically to destroy hardened enemy positions, fortified bunkers, and entrenched targets. The vehicle operates with a four-man crew consisting of a driver, commander, gunner, and gunner assistant, supported by an automatic loader and advanced firing system for sustained operations.

The Serbian-made system achieves a rate of fire of up to three rounds per minute and delivers a 100 kg projectile with a 28 kg explosive payload. Its destructive radius spans 75 meters, making it highly effective in saturation fire missions. Compatible with a variety of advanced munitions including high-explosive, cluster, thermobaric, and rocket-assisted projectiles, the TSMB 203mm offers tactical flexibility for different combat scenarios, from mountain warfare to urban assault operations.

What sets this platform apart is its integration of modern battlefield electronics. The TSMB features an advanced fire control system powered by an inertial navigation suite, a digital ballistic computer with embedded targeting software, a secure radio network, and a dedicated gunner’s terminal. These enhancements allow for faster targeting, improved first-round accuracy, and real-time fire coordination with command elements.

While the system was presented statically during Partner 2025, technical data released by Serbian defense sources confirm its exceptional performance characteristics. The elevation range spans from 0° to 75° while its azimuth effect angle reaches ±23.5°, providing wide arc engagement without repositioning. With a maximum vehicle speed of 80 km/h and an operational range of 600 kilometers, the TSMB is engineered for rapid displacement, high-tempo engagements, and effective shoot-and-scoot operations.

Weighing under 19 tons and mounted on a rugged 6x6 FAP truck platform, the system is well-suited for both national defense and potential export to partners seeking cost-effective heavy firepower. Its ballistic protection and battlefield digitalization demonstrate a major leap forward for Serbian artillery capabilities, bridging Cold War firepower concepts with 21st-century mobility and targeting systems.

The debut of the TSMB 203mm at Partner 2025 underscores Serbia’s growing ambitions in the land warfare sector and highlights the strategic role indigenous platforms can play in regional force modernization. As artillery once again dominates the battlefield in modern conflicts, the emergence of high-caliber, highly mobile solutions like the TSMB signals a return to massed firepower, this time with precision digital oversight.

Army Recognition continues its live editorial coverage from Partner 2025 with exclusive interviews, imagery, and insights into Serbia’s defense innovation and export potential.

Written by Alain Servaes – Chief Editor, Army Recognition Group
Alain Servaes is a former infantry non-commissioned officer and the founder of Army Recognition. With over 20 years in defense journalism, he provides expert analysis on military equipment, NATO operations, and the global defense industry.