Direct proof of use
Bellingcat's open-source reconstruction of the 2017 battle for Manshiyah in Daraa directly documents SPG-9 use by the al-Bunyan al-Marsous opposition operations room during the Syrian Civil War. The investigation states that rebel forces targeted regime positions in the north-east corner of Manshiyah with SPG-9s after advancing to the Salkhadi Block, and that a later al-Bunyan al-Marsous statement and photo report claimed the destruction of a 23 mm cannon with an SPG-9.
The same reconstruction places the SPG-9 activity inside the April 2017 Manshiyah fighting, a block-by-block urban battle between opposition forces and Syrian government-aligned forces in Daraa city.
Sources: Bellingcat Manshiyah Battle
Timeline
On February 12, 2017, al-Bunyan al-Marsous announced a new offensive in Manshiyah, the last government-held stronghold in the elevated parts of southern Daraa. Bellingcat's chronology describes the opening attack with vehicle bombs and an explosive hose, then follows alternating pauses, counterattacks, and renewed rebel assaults through April and May.
The clearest SPG-9 milestones came late in the April fighting. Bellingcat reports that, after rebels advanced to the Salkhadi Block, rebel forces spent the following days targeting regime positions in the north-east corner of Manshiyah with SPG-9s, at least one TOW missile, and another explosive hose. On April 25, al-Bunyan al-Marsous claimed it had destroyed a 23 mm cannon with an SPG-9.
Sources: Bellingcat Manshiyah Battle
Narrative
The SPG-9 appears in the Manshiyah record as a crew-served direct-fire support weapon used by opposition forces in dense urban terrain. Its documented targets were government positions in north-east Manshiyah, with one reported strike against a 23 mm cannon rather than a confirmed tank or armored vehicle.
Syria Direct described al-Manshiyah as a heavily fortified government-held district in southern Daraa city and reported that Islamist and Free Syrian Army factions were fighting there to prevent government forces from regaining control near the Jordanian border. That campaign context explains the SPG-9's role as part of a mixed rebel fire package that also included TOW missiles, explosive hoses, rockets, and other conventional strikes.
The available public record supports opposition use in the Manshiyah battle, but it does not establish a comprehensive inventory, transfer route, quantity, or every unit operating the weapon. The most specific sourced user is al-Bunyan al-Marsous, an opposition operations room that included Southern Front factions and Islamist groups during the Daraa city campaign.
Sources: Bellingcat Manshiyah Battle, Syria Direct Daraa Battle