In 1985, the USSR delivered 28 Osa-AKM systems to the Romanian Army, then under the communist regime. These vehicles continued to serve with the Romanian Army after the fall of the USSR. Due to the lack of spare parts and the prioritisation of NATO-standard equipment, the Osa systems were maintained using cannibalised parts. As of 2025, 16 of these systems are still in active service, and are expected to be phased out in the near future.

The Romanian Osa-AKM was introduced in Update 2.41 "Firebirds" as a part of the Italian tech tree, and is identical to its Soviet counterpart. The Osa-AKM can reliably engage manoeuvring aerial targets at ranges up to 10 km and is capable of guiding two missiles onto a single target simultaneously. Thanks to its wheeled chassis, the Osa-AKM enjoys excellent mobility, allowing it to take up unexpected positions against enemy aircraft. However, the vehicle has a large silhouette, no meaningful armour protection, and its missiles are mounted at an upward angle, leaving it virtually incapable of engaging ground targets.