Serbia Presented Modernized OSA 2 RPG With Guided Projectile

Serbia’s defense industry has developed an updated version of the OSA 2 RPG with a guided anti-tank projectile, which was unveiled at the Partner exhibition 2025.

According to ArmyRecognition, the upgrade affects the design of the 90 mm hand-held anti-tank grenade launcher: it has been given a lighter barrel, updated sighting devices, and a fire control module located above the handle.

The launcher kit includes a reloadable launch container, a sight, a pistol grip with a trigger mechanism, and additional supports to securely hold the grenade launcher while firing. This configuration improves ease of use and allows for quick resumption of fire after reloading.

The total weight of the system ranges from 12 to 14.8 kilograms, depending on the optics selected and the type of ammunition container. The length of the device varies from approximately 1.2 meters in the ‘containerless’ version to 1.65-1.8 meters with the ammunition container attached.

These dimensions are important for infantry: compactness and weight affect mobility when moving through buildings or when boarding and disembarking from light vehicles. Serbian engineers emphasize ergonomics and the ability to use the system in confined spaces.

A key element of the modernization is the onboard ballistic computer. It combines day and night sights with a laser rangefinder and uses the range data to calculate the corrected aiming point.

New ammunition

The manufacturer’s documentation notes the compatibility of the installation with several families of ammunition, which expands the tactical capabilities of the system. Standard anti-tank missiles are marked as SATR, while the CR combined projectile provides a multi-purpose effect against lightly armored targets.

For the first time, the review also highlights thermobaric ammunition designed to engage enemy personnel in shelters. A separate GATR variant is described as a guided anti-tank missile with increased accuracy.

The launcher remains reusable: the missiles are supplied in replaceable containers attached to the tube. After firing, the ammunition container is detached and ejected, and a new container with the next grenade is easily inserted in its place.

This design increases the rate of fire and reduces the logistical burden on the unit. The modular approach also simplifies maintenance and upgrades of individual components.

Serbia’s modernization of the OSA 2 demonstrates a desire to combine lightweight construction, digital targeting solutions, and compatibility with various types of ammunition, making the system a flexible tool for modern infantry.

At the Partner exhibition 2025, Serbia also presented the heavy TSMB 203 mm artillery system, which is designed to destroy bunkers and other fortifications.