The 3OF50 is a Soviet-era 120 mm rocket-assisted high-explosive fragmentation projectile for Nona-family gun-mortars such as the 2S9 Nona and 2S23 Nona-SVK. Specialist ammunition references describe a spin-stabilised, nose-fuzed projectile with an A-IX-2-filled warhead and integral rocket motor, while Ukraine explosive-ordnance identification material lists the round among munitions discovered on Ukrainian territory.
Bomb Techs Without Borders' Ukraine ammunition-identification guide says it covers ordnance discovered on Ukrainian territory and lists the 120 mm 3OF50 projectile; Fenix's METIS page also maps 3OF50 to Ukraine, but neither source identifies the firing side.
Open references identify 3OF50 as the rocket-assisted 120 mm projectile in Nona-family ammunition sets.
| Firing weapon | Weapon type | Firing evidence |
|---|---|---|
 | 120 mm self-propelled gun-mortar | Belspetsvneshtechnika lists rocket-assisted projectile 3OF50 in the 2S9 Nona-S ammunition set, and VPK says 3OF50 active-rocket projectiles extend 2S9 fire to about 12 km. |
 | 120 mm self-propelled gun-mortar | Forecast International and Weaponsystems.net both document the 2S23 Nona-SVK / 2A60 Nona firing rocket-assisted 120 mm rounds to a maximum range of 12.8 km, which is the extended-range mode this projectile supports. Sources: SM-120 (2S23) Nona-SVK 120mm Self-Propelled Howitzer/Mortar, 2S23 Nona-SVK |
3OF50 sits in the Nona 120 mm ammunition family rather than the generic smoothbore mortar-bomb set. The most useful open sources identify it through three angles: munition construction, platform ammunition lists, and Ukraine explosive-ordnance identification.
| Evidence lane | Source-backed detail | Reader takeaway |
|---|---|---|
| Projectile construction | Fenix describes a nose-fuzed, spin-stabilised rocket-assisted HE-fragmentation projectile with an A-IX-2-filled warhead, driving band, and rocket motor. | The round is a projectile for rifled Nona weapons, not just a standard 120 mm mortar bomb. |
| Firing weapons | Belspetsvneshtechnika lists 3OF50 for the 2S9 Nona-S, while Forecast International and Weaponsystems.net document rocket-assisted 120 mm fire from the 2S23 Nona-SVK. | The same extended-range ammunition role spans tracked and wheeled Nona-family systems. |
| Ukraine ordnance identification | Bomb Techs Without Borders' Ukraine guide lists 120 mm 3OF50 and limits its models to items discovered on Ukrainian territory. | The conflict record is evidence-limited: the round is documented in Ukraine ordnance identification, but open sources used here do not identify the firing side. |
VPK says the Nona project shifted to a multifunctional self-propelled artillery system in 1969 and that GNPP Basalt developed the vehicle's ammunition.
Sources: VPK 2S9 Nona-S article
VPK says the 2S9 was accepted into service on July 1, 1980; later Nona ammunition references identify 3OF50 as the rocket-assisted projectile in the family.
Sources: VPK 2S9 Nona-S article, 2S9 Nona-S ammunition list, 3OF50
The Ukraine ammunition-identification guide lists 120 mm 3OF50 and states that its models are limited to ordnance discovered on Ukrainian territory.
Sources: Basic Identification of Ammunition in Ukraine v7.0
