The 2S40 Floks is a Russian 120 mm wheeled self-propelled gun-mortar developed by Burevestnik under the Nabrosok artillery program and mounted on an armored Ural-4320 6x6 chassis. Open reporting ties it to Russian battlefield use in Ukraine from October 2023, where Ukrainian drone units documented strikes against newly fielded systems while Rostec and defense references describe the platform's combined mortar, howitzer-style indirect-fire, and direct-fire roles.
Fielded by Russian forces after first-batch delivery reporting in October 2023; Ukrainian reporting documented a drone strike against a Floks in the Kherson region on October 6, 2023, a Signum/93rd Brigade FPV destruction claim near Bakhmut in March 2024, and a January 2025 Iron Brigade FPV destruction claim with no location visible in accessible metadata.
Role detailsDefense reporting links the 2S40 Floks to OFS 13, OFM, and Kitolov-2M ammunition types.
| Ammunition | Ammunition type | Firing evidence |
|---|---|---|
 | 122 mm semi-active laser-guided artillery projectile | Defense Express reported that the 2S40 Floks fires Kitolov-2M guided munitions, and Army Recognition described the combination as reaching about 10 km. Sources: New Russian 2S40 Floks Howitzer Just Delivered, Next Day First One Gets Hit in Ukraine, Phlox or Floks 2S40 |
 | 120 mm high-explosive mortar round | Defense Express explicitly lists the 2S40 Floks as firing the OFS 13 round and reports a range of about 8.5 km for that ammunition option. Sources: New Russian 2S40 Floks Howitzer Just Delivered, Next Day First One Gets Hit in Ukraine |
 | 120 mm round | Defense Express reports that the 2S40 Floks fires an OFM round and gives the round a reported range of about 7.2 km. Sources: New Russian 2S40 Floks Howitzer Just Delivered, Next Day First One Gets Hit in Ukraine |
Open references describe the Floks as a combined 120 mm weapon rather than a conventional single-role mortar carrier: the same rear-mounted gun is presented as able to use mortar ammunition, rifled artillery projectiles, and guided rounds from a protected wheeled truck chassis. Rostec also emphasizes a shoot-and-scoot role, modern fire-control electronics linked to reconnaissance assets, and multi-round simultaneous impact fire as part of the system's advertised artillery package.
Rostec gives 40 seconds as the standard time to enter firing position and says a skilled crew can reduce that to about 30 seconds.
The developer-facing description highlights electronics meant to integrate the gun with modern reconnaissance systems, including drones.
Rostec describes a mode in which the crew fires consecutive rounds at different barrel elevations so they arrive nearly together.
| Function | Ammunition or mode | Documented context |
|---|---|---|
| Mortar fire | 120 mm mortar bombs or mines | Rostec and TASS describe the Floks as able to fire mortar ammunition from its combined rifled weapon. |
| Artillery fire | Rifled 120 mm projectiles | Defense Express lists OFS 13 and OFM firing options, while Army Recognition reports a longer artillery-shell range class. |
| Precision fire | Kitolov-2M guided projectile | Defense Express and Army Recognition both link the Floks to Kitolov-2M, giving about a 10 km reported range for that guided munition. |
| Direct fire | Combined gun used at low elevation | TASS and Army Recognition describe direct-fire use as part of the system's advertised multi-role design. |
Army Recognition identifies the Army-2016 forum near Moscow as the Floks system's public unveiling.
Sources: Phlox or Floks 2S40
TASS reported Uralvagonzavod's statement that Floks and Magnolia prototypes were in final preliminary trials, with mass production expected after state trials.
Sources: Russia to Launch Production of Next-Generation Artillery Systems
Defense Express reported Russian industry claims that the first Floks batch had entered Russian service; LIGA.net likewise connected the Ukrainian strike report to recent Russian delivery announcements.
Sources: New Russian 2S40 Floks Howitzer Just Delivered, Next Day First One Gets Hit in Ukraine, Ukrainians Strike Newly Introduced Russian Floks Howitzer in First Confirmed Engagement
LIGA.net reported a Ukrainian drone strike against a newly introduced Floks, and Defense Express placed the claimed attack in the Kherson region while noting that the damage was not independently confirmed.
Sources: Ukrainians Strike Newly Introduced Russian Floks Howitzer in First Confirmed Engagement, New Russian 2S40 Floks Howitzer Just Delivered, Next Day First One Gets Hit in Ukraine
Defense Express reported that Ukraine's 93rd Mechanized Brigade Signum unit destroyed a Russian Floks near Bakhmut with an FPV drone.
Sources: Russia's Latest 2S40 Floks Mortar Destroyed by Ukrainian FPV-Drone
Ukraine's 3rd Separate Heavy Mechanized Iron Brigade reported that its drone operators destroyed a Russian 2S40 Floks with one FPV drone; accessible metadata did not provide a location.
Sources: Iron Brigade Floks FPV Strike
